Engineering Guide · Vendor-Neutral

Applikon vs Eppendorf vs Sartorius Ambr: Bench Bioreactor Comparison

Applikon, Eppendorf, and Sartorius Ambr bench bioreactor side-by-side comparison pH DO Tmp GLASS AUTOCLAVE SINGLE VESSEL · RUSHTON Applikon 150 mL – 20 L my|Control · ez2-Control Glass + AppliFlex ST SU VS DASware UNIVERSAL DRIVE 1–8 VESSELS PER CTRL Eppendorf 250 mL – 40 L BioFlo 120/320 · SciVario Glass + BioBLU rigid-wall SU VS ROBOTIC LIQUID HANDLER 24 OR 48 PARALLEL VESSELS Sartorius Ambr 10 mL (15) · 100–250 mL (250 HT) Single-use polymer vessels Ambr Software Suite
Figure 1: The three bench and PD bioreactor architectures side-by-side. Applikon (left) is the single-vessel autoclavable glass workhorse controlled by my|Control or ez2-Control, with the AppliFlex ST single-use option on the same controller. Eppendorf (centre) sits between single-vessel bench and full parallel — the BioFlo 120 and BioFlo 320 pair with glass or BioBLU single-use vessels, and the SciVario twin is a two-vessel modular unit. Sartorius Ambr (right) is the high-throughput arm: a robotic deck runs 24 or 48 single-use polymer vessels in parallel with automated liquid handling, feeding a scale-down model of a 5 L bench or 2,000 L single-use bioreactor.
Quick Verdict

All three vendors sell competent bench bioreactors, but they solve different problems and rarely compete head-to-head. Choose Applikon (my|Control or ez2-Control) when you need one to a few glass or single-use vessels from 150 mL to 20 L on a common software stack; choose Eppendorf (BioFlo 120, BioFlo 320, or SciVario twin) when you need multi-vessel flexibility with rigid-wall BioBLU single-use vessels and integrated Mettler Toledo ISM sensors; choose Sartorius Ambr 15 or Ambr 250 HT when you need 12–48 parallel single-use vessels for DoE, clone screening, or scale-down of a Biostat STR pilot process. Ambr costs roughly 5–10× a bench BioFlo or ez2-Control system per unit and buys throughput, not per-vessel quality.

Key differences at a glance

Side-by-side comparison

Factor Applikon (Getinge) Eppendorf Sartorius Ambr
Flagship product line my|Control · ez2-Control BioFlo 120 · BioFlo 320 · SciVario twin Ambr 15 · Ambr 250 HT
Working volume range 150 mL – 20 L (glass); 500 mL – 15 L (AppliFlex ST SU) 250 mL – 40 L (glass + BioBLU c/f) 10–15 mL (Ambr 15); 100–250 mL (Ambr 250 HT)
Parallelism per controller 1 vessel 1–8 vessels (BioFlo 320); 2 (SciVario twin) 12, 24, or 48 vessels
Vessel format Glass autoclavable or single-use (AppliFlex ST 3D-printed rigid-wall) Glass autoclavable or single-use (BioBLU c cell / BioBLU f microbial) Single-use polymer only (Sartorius proprietary)
Sterilisation Autoclave (glass); gamma pre-sterile (AppliFlex ST) Autoclave (glass); gamma pre-sterile (BioBLU) Gamma pre-sterile only
Standard sensor set pH, DO, temp, RedOx, agitation, foam, level; USB balance/biomass pH, DO, temp, level, gas mixing; Mettler ISM digital + analog + Hamilton Arc (SciVario) Optical pH, optical DO, temp; optional BioPAT Viamass capacitance (Ambr 250)
Control software BioXpert (web + mobile app) Onboard touchscreen + DASware Control / BioCommand Ambr Software Suite + BioPAT Process Insights
Typical use Screening, teaching, small microbial and cell culture, tech transfer to AppliFlex STR Non-GMP PD (120), advanced PD and characterisation (320), twin-vessel modular PD (SciVario) High-throughput DoE, clone/media screening, scale-down of Biostat STR
Typical used-market capital (single 3 L or entry-level workstation) ~USD 13,000 (ez2-Control 3 L, LabX) ~USD 11–13k (BioFlo 120); ~USD 19–30k (BioFlo 320); ~USD 48k (SciVario twin) ~USD 150,000 (Ambr 250 HT 12-way, EquipNet)
Parent / corporate owner Getinge AB Eppendorf SE Sartorius Stedim Biotech

Values reflect the vendors' current published product-line specifications and publicly listed used-market capital estimates from LabX, EquipNet, and Labexchange. New-system list prices for all three vendors are quote-only. Your vendor's current datasheet takes precedence. See the bioreactor sizing guide for the working-volume and geometry framework upstream of vendor choice.

Applikon (Getinge) in detail

Applikon Biotechnology — now a Getinge company — sells single-vessel bench bioreactors from about 150 mL to 20 L, split across two hardware tiers that share the same BioXpert web-based software. The my|Control is the small-vessel controller for 50 mL to 3 L work; the ez2-Control is the PD-grade controller for 1–20 L. Both accept the autoclavable glass Applikon Bio vessel family and the gamma-irradiated single-use AppliFlex ST vessels, so a lab can start on glass at 250 mL and progress to single-use at 15 L without changing the software front-end.

How it works

The my|Control and ez2-Control are compact tabletop controllers built around Applikon's modular gas and pump architecture. The ez2-Control ships with four peristaltic pumps and up to six mass flow controllers, supports adaptive PID and cascade control, and connects to sensors, load cells, and off-gas analysers via a USB and Modbus bus. The glass Applikon Bio vessels use a head-plate design with side-inserted probes on standard PG13.5 ports, a top-driven magnetically or mechanically coupled shaft, and a choice of impellers (2× Rushton for microbial or 2× marine for shear-sensitive cell culture). The AppliFlex ST single-use vessels are 3D-printed rigid-wall bags at 500 mL, 3 L, and 15 L nominal working volume, which allows non-standard port layouts and inserts for prototype work — a design freedom the fixed-catalogue Eppendorf BioBLU and Sartorius Ambr vessels do not offer. BioXpert is a browser-based front-end (with a companion mobile app) that runs on Windows, macOS, or a tablet and connects to any my|Control or ez2-Control on the LAN.

When Applikon wins

Applikon wins when a lab needs modular value: one software stack, one training curve, and a controller line that spans 250 mL to 20 L with both glass and single-use options. The my|Control and ez2-Control controllers share the same BioXpert user interface, so a scientist trained on my|Control can operate ez2-Control without retraining. Applikon is the affordable European bench bioreactor in academic labs, small CDMOs, and industrial R&D groups that want glass-first flexibility without vendor lock-in on disposables. The Getinge acquisition brought stronger service coverage and a clear scale-up pathway to the AppliFlex STR pilot single-use bioreactor at 40–1,000 L, which sits alongside Biostat STR, HyPerforma, and Xcellerex in the pilot market.

Eppendorf in detail

Eppendorf sells the broadest bench bioreactor portfolio of the three vendors, spanning three overlapping product families. The BioFlo 120 is the entry-level bench controller (250 mL to 40 L). The BioFlo 320 is the advanced bench controller with a 15-inch touchscreen and support for up to eight vessels per controller. The SciVario twin is a modular two-vessel PD workhorse. All three accept glass autoclavable vessels and the BioBLU c (cell culture) and BioBLU f (microbial) rigid-wall single-use vessels.

How it works

The BioFlo 120 uses a universal drive that switches between direct-drive and magnetic drive to serve both microbial and mammalian cultures without a hardware change. Its onboard touchscreen runs a self-contained recipe engine; DASware Control adds off-board data logging, DoE, and OPC UA integration. The BioFlo 320 keeps the universal drive but upgrades the sensor bay to native Mettler Toledo ISM digital input for pH, DO, biomass, and turbidity, and supports a multi-vessel configuration in which one control cabinet drives up to eight vessels (glass or BioBLU) with independent recipes. The SciVario twin is a bay-drawer chassis that hosts two vessels per unit and can be stacked, offering a middle ground between a single BioFlo 320 and a full Ambr platform. All three families support the BioBLU c single-use vessels for cell culture (65 mL to 40 L) and BioBLU f single-use vessels for microbial fermentation (65 mL to 3.75 L), with optical DO and pH ports for gamma-compatible sensor patches. Eppendorf publishes application notes covering CHO cell culture in BioBLU 10c single-use vessels and biosimilar CHO scale-up from DASGIP parallel to BioFlo 320, which is where the BioFlo 320 usually earns its keep.

When Eppendorf wins

Eppendorf wins on breadth per controller. The BioFlo 320 covers 400 mL to 40 L on a single unit and mixes glass and BioBLU single-use vessels — so one asset serves early screening, late PD, and small-batch clinical supply. Eppendorf's BioBLU rigid-wall single-use vessels are a genuine differentiator: most competitors use bag-based single-use vessels, but the BioBLU rigid-wall design keeps the impeller geometry closer to a glass vessel, which simplifies scale-down/scale-up modelling between glass and single-use runs on the same controller. The SciVario twin is a well-fitted middle option for a PD group that needs two-vessel parallelism without paying for the eight-vessel BioFlo 320 configuration or the throughput of an Ambr platform. If you value one control cabinet serving many pipelines, Eppendorf is the vendor to shortlist.

Sartorius Ambr in detail

The Sartorius Ambr 15 Cell Culture and Ambr 250 HT systems (originally TAP Biosystems, acquired by Sartorius in 2013) are the reference automated parallel bioreactor platforms for early- and late-phase process development. Ambr 15 runs 24 or 48 single-use 10–15 mL polymer vessels under a robotic liquid handler on a fully enclosed deck; Ambr 250 HT runs 12 or 24 single-use 100–250 mL vessels with the same robotic architecture. Sartorius also sells traditional bench bioreactors under the Biostat B-DCU brand, but when buyers compare Sartorius to Applikon and Eppendorf on bench and PD scale, the Ambr line is what they typically mean.

How it works

Each Ambr vessel is a single-use polymer well with an integrated 4-blade pitched impeller, gas sparger, and optical pH and DO sensor patches. Foundational physical characterisation by Nienow, Rielly, Brosnan et al. (2013, Biochemical Engineering Journal) reported mixing times of 5–42 s and energy dissipation rates near the impeller comparable to a 3 L bench bioreactor, which established the Ambr 15 as a valid scale-down platform for CHO. Rameez, Mostafa, Miller and Shukla (2014, Biotechnology Progress) demonstrated reproducibility and agreement with conventional 3 L bench bioreactors on growth, viability, and titer. For the Ambr 250, Xu et al. (2017, Biotechnology Progress) published a hydrodynamic and process-equivalence characterisation against 5 L and 1,000 L bench and pilot bioreactors. Sandner, Pybus, McCreath and Glassey (2019, Biotechnology Journal) formalised the scale-down model qualification methodology for both Ambr 15 and Ambr 250 platforms; Manahan et al. (2019, Biotechnology Progress) qualified the Ambr 250 HT against two commercial-scale (>10,000 L) mAb processes using PCA and univariate equivalence. The robotic liquid handler executes feed additions, sampling, and base additions programmed in the Ambr Software Suite, with BioPAT Process Insights adding real-time analytics.

When Ambr wins

Ambr wins whenever a programme needs to run more parallel conditions than a rack of single-vessel bench bioreactors can practically deliver. A single Ambr 15 run at 48 conditions replaces about 24 pairs of 3 L bench bioreactors, cuts calendar time from months to weeks, and removes most of the operator variability. For CHO clone selection, media screening, feed strategy design, and DoE on process parameters, Ambr 15 is the industry-default and has been for over a decade. Ambr 250 HT extends the same paradigm to late-phase process characterisation with liquid volumes that support meaningful metabolomics and glycan sampling. Ambr is also the tightest scale-down model for a Biostat STR pilot line — both share Sartorius scale-up mathematics and the Biostat STR is the reference platform in most major CDMO fleets, so an Ambr 250 process transfers cleanly to a Biostat STR at 500–2,000 L.

Pros and cons

Applikon (my|Control, ez2-Control, AppliFlex ST)

Advantages

  • Same BioXpert software across my|Control and ez2-Control — one training curve for 250 mL through 20 L.
  • 3D-printed AppliFlex ST single-use vessels allow customisable port layouts unavailable on catalogue-only BioBLU and Ambr vessels.
  • Compact tabletop footprint — five my|Control units fit on a 1 m bench.
  • Clear scale-up path to AppliFlex STR pilot single-use bioreactor via the same Getinge portfolio.

Disadvantages

  • No true high-throughput parallel platform — more than four vessels means stacking single-vessel controllers.
  • Lower brand visibility in Tier-1 US biopharma than Sartorius or Eppendorf.
  • Post-Getinge acquisition, standalone product launches have slowed relative to the 2015–2020 cadence.
  • Sensor stack is less integrated than Eppendorf's native Mettler ISM or Sartorius's BioPAT ecosystem.

Eppendorf (BioFlo 120 / BioFlo 320 / SciVario twin)

Advantages

  • Widest volume range on one controller: BioFlo 320 covers 400 mL to 40 L on a single asset.
  • BioBLU rigid-wall single-use vessels keep impeller geometry close to glass, simplifying scale-down/scale-up modelling.
  • Universal drive switches between direct-drive and magnetic drive without a hardware change — serves both microbial and mammalian cultures.
  • SciVario twin gives a two-vessel modular option below the eight-vessel BioFlo 320 configuration.

Disadvantages

  • No true high-throughput parallel platform — 8 vessels per BioFlo 320 is the ceiling.
  • Closed BioBLU + BioFlo + DASware ecosystem — portability of process recipes to a non-Eppendorf pilot line requires re-characterisation.
  • DASware licensing model can add cost at multi-vessel scale.
  • Sartorius's Ambr scale-down literature is deeper than Eppendorf's DASGIP scale-down literature.

Sartorius Ambr 15 & Ambr 250 HT

Advantages

  • Unmatched parallel throughput: 48 vessels (Ambr 15) or 24 vessels (Ambr 250 HT) per campaign.
  • Best-validated scale-down literature of any platform (Nienow 2013, Rameez 2014, Xu 2017, Sandner 2019, Manahan 2019).
  • Tight scale-down alignment with the Biostat STR pilot single-use bioreactor line.
  • Robotic liquid handling removes most operator variability from feed additions, sampling, and base additions.

Disadvantages

  • Capital cost roughly 5–10× that of a single BioFlo 320 or ez2-Control bench line per unit.
  • Single-use vessels only — Sartorius-proprietary consumables raise recurring spend and lock the workflow.
  • Overkill for a lab that runs one process at a time — Sartorius's Biostat B / B-DCU is the fit there, not Ambr.
  • Small liquid volumes (10–15 mL) constrain the range of offline analytics on Ambr 15.

Which vendor should you choose?

Pick based on the dominant constraint: number of parallel conditions, vessel format, sensor ecosystem, or scale-up target.

Small lab, one or two glass vessels

Academic group, teaching lab, or small biotech that runs one microbial or cell-culture process at a time in a 250 mL to 5 L glass vessel and wants a single vendor and one training curve.

Choose Applikon my|Control

PD lab needing 1–8 vessels + glass/SU mix

Industrial PD group that runs a rotating mix of glass and single-use vessels between 400 mL and 40 L on the same controller and wants deep Mettler Toledo ISM sensor integration.

Choose Eppendorf BioFlo 320

Clone screening, DoE, or 24+ parallel conditions

Cell-line development, media/feed screening, or process-parameter DoE that needs 24–48 parallel vessels in one campaign. Only Sartorius Ambr scales to that density.

Choose Sartorius Ambr 15 or Ambr 250 HT

Scale-down of a specific pilot single-use bioreactor

Match the pilot platform. Applikon my|Control / ez2-Control for AppliFlex STR; Eppendorf BioFlo 320 for BioBLU-based pilots; Ambr 250 HT for a Biostat STR line.

Choose the matching vendor

Real-world use cases

How process teams typically converge on one vendor for a specific problem.

CHO clone screening · 48 vessels
Sartorius Ambr 15 for early cell-line development

A biotech running 48 CHO clones through a 14-day fed-batch screen. Ambr 15 automates feed additions and sampling across all vessels; the campaign completes in weeks not months. Downstream winners are re-tested on Ambr 250 HT before pilot-scale transfer.

E. coli fermentation · 3 L
Applikon ez2-Control for microbial PD

A microbial group producing recombinant protein at 3 L working volume in glass, running one strain at a time with Rushton impellers. ez2-Control's four pumps and six MFCs support pH-stat and DO-stat feeding, and the BioXpert data flows straight to the BioBLU-independent process file.

CHO fed-batch characterisation · 5 L
Eppendorf BioFlo 320 with BioBLU 5c

A late-phase PD team running characterisation DoE on a single mAb in BioBLU 5c single-use vessels, four in parallel on one BioFlo 320 controller. Mettler Toledo ISM sensors provide compliant data, DASware Control runs the DoE, and the same asset can host a glass Univessel later.

Two-vessel modular PD · 1 L
Eppendorf SciVario twin for space-constrained labs

A CDMO PD suite with limited bench length using SciVario twin to run two vessels per drawer, expandable by adding units. A middle ground between BioFlo 320 (up to 8) and full Ambr platforms when the throughput need is modest but still parallel.

Not sure which bench vessel and sensor stack fits your PD workflow?

The Bioreactor Sensor Selection Tool asks 6 questions about your scale, modality, and PAT ambition and returns a ranked shortlist of optical DO, pH, biocapacitance, and Raman probes qualified across Applikon, Eppendorf, and Sartorius bench platforms.

Open the Sensor Selection Tool

Cost and lifecycle considerations

Capital cost per vessel is the wrong metric — parallel throughput per campaign is the right one

A single BioFlo 120 or ez2-Control 3 L system runs USD 11,000–13,000 used; an Ambr 250 HT 12-way workstation runs around USD 150,000 used. Divide the workstation cost by the number of parallel conditions per campaign, add operator labour, and the true per-condition cost usually favours Ambr for any programme running 12+ conditions.

All three vendors sell into the "quote-only" new-market and none publish list prices, so the best public reference is the used-equipment market. LabX, EquipNet, Bimedis, and Labexchange list a fairly consistent used-market band for each product. A used Eppendorf BioFlo 120 3 L is USD 11,000–13,000; a used BioFlo 320 3 L is USD 19,000–30,000, with DUAL configurations closer to USD 29,000. A used Eppendorf SciVario twin (two vessels) lands around USD 48,000. A used Applikon ez2-Control 3 L controller sits around USD 13,000 (vessel extra). A used Ambr 250 HT 12-way workstation was recently listed on EquipNet at approximately USD 150,000 — a factor of five to ten above a comparable single-vessel bench system.

The recurring-cost story flips the same way. Autoclavable glass Applikon Bio and Eppendorf Univessel vessels have effectively no per-batch consumable cost beyond calibration standards, seals, and O-rings. BioBLU c/f and AppliFlex ST single-use vessels add USD 400–1,500 per vessel depending on size and integrated sensors. Ambr 15 and Ambr 250 single-use vessels carry the highest per-condition consumable cost of any bench platform, offset by the throughput multiplier: 24 Ambr 250 vessels per campaign at a fully allocated consumable cost roughly matches or beats 24 separate BioBLU 250 or ez2-Control runs once operator labour is included. See our scale-up calculator for the kLa- and P/V-based scale-down mathematics that ties Ambr 250 back to a 5 L bench and a 2,000 L pilot vessel.

Cost component (single system, illustrative) Applikon Eppendorf Sartorius Ambr
Capital (single 3 L bench or entry workstation, used)~USD 13k (ez2-Control 3 L)~USD 11–30k (BioFlo 120/320 3 L)~USD 150k (Ambr 250 HT 12-way)
Capital (advanced or twin PD unit, used)~USD 25–40k (ez2-Control + glass PD kit)~USD 48k (SciVario twin)~USD 500k–1M (Ambr 15 48-way, indicative)
Per-vessel single-use consumable~USD 400–1,500 (AppliFlex ST)~USD 400–1,500 (BioBLU c/f)Highest per-vessel; lowest per-condition at 24–48 parallel
Per-condition operator labour (relative)1× (single vessel)~0.5–1× (multi-vessel BioFlo 320)~0.1–0.2× (automated Ambr)
Best-fit throughput per campaign1–4 vessels1–8 vessels12–48 vessels

Used-market capital figures reflect LabX, EquipNet, Bimedis, and Labexchange listings sampled 2026. New-market list prices are quote-only from all three vendors. Ambr 15 new pricing is not publicly disclosed; the ~USD 500k–1M figure is widely reported industry hearsay and should be verified with a vendor quote.

Vendor landscape

Each of the three vendors covers a specific band of the bench and PD bioreactor market. Cross-shopping the three usually happens at the "1–8 vessels for late PD" middle ground; the ends of the range (single-vessel small-lab work and 24–48 parallel automated screening) are less contested.

Applikon / Getinge platform

Eppendorf platform

Sartorius platform

Frequently asked questions

What is the difference between Applikon, Eppendorf, and Sartorius bench bioreactors?
All three vendors sell bench bioreactor platforms for early and late process development, but they occupy different positions in the workflow. Applikon (now part of Getinge) sells single-vessel glass and single-use benchtop systems from about 150 mL to 20 L via the my|Control, ez2-Control, and AppliFlex ST product lines, all controlled by the BioXpert web/mobile software. Eppendorf sells the BioFlo 120 (entry-level bench, 250 mL – 40 L with BioBLU single-use vessels), the BioFlo 320 (advanced bench with up to eight vessels per controller), and the SciVario twin two-vessel platform, using DASware or BioCommand for data acquisition. Sartorius's Ambr platform is the high-throughput arm: Ambr 15 runs 24 or 48 single-use 10–15 mL vessels in parallel, Ambr 250 HT runs 12 or 24 single-use 100–250 mL vessels in parallel, and both are automated by a robotic liquid handler and the Ambr Software Suite. Sartorius also sells conventional bench bioreactors under the Biostat B and Biostat B-DCU brands, but the Ambr line is what most buyers mean when they compare Sartorius against Applikon and Eppendorf.
Can the Ambr 15 replace a 2 L or 5 L bench bioreactor for CHO process development?
Partly. Peer-reviewed work — Nienow et al. (2013, Biochemical Engineering Journal), Rameez et al. (2014, Biotechnology Progress) and Sandner et al. (2019, Biotechnology Journal) — demonstrates that the Ambr 15 is a valid scale-down model of a conventional 2–5 L bench bioreactor for CHO growth, viability, and titer when hydrodynamic conditions are matched. It is the workhorse for clone selection, media screening, and DoE with 24–48 conditions in one campaign. Ambr 15 does not replace a bench bioreactor for late-phase process characterisation, tech-transfer document generation, or protocols that need larger sample volumes (metabolomics, glycan analysis) — those still need a 3 L glass or 250 mL Ambr 250 vessel with the extra port depth and sample volume. In practice most PD groups run Ambr 15 for early screening, Ambr 250 or a bench BioFlo 320 for characterisation, then transfer to a Biostat STR / HyPerforma / Xcellerex single-use bioreactor at pilot and commercial scale.
What is the difference between the Eppendorf BioFlo 120 and BioFlo 320?
The BioFlo 120 is Eppendorf's entry-level bench bioreactor controller — one station, glass or BioBLU vessels from 250 mL to 40 L, touchscreen HMI, and a universal drive that switches between direct-drive and magnetic drive for microbial vs cell-culture work. It targets teaching labs, non-GMP process development, and small biotech PD groups. The BioFlo 320 is the advanced sibling. It uses a 15-inch touchscreen, supports up to eight vessels on a single control cabinet through multi-vessel configuration, integrates Mettler Toledo ISM digital sensors natively, and supports the full range of BioBLU c and f single-use vessels alongside glass. Both use DASware Control for data acquisition and DoE. Choose the 120 when you need one vessel at a time in a teaching or non-GMP setting; choose the 320 when you need multi-vessel parallelism, deeper sensor integration, or intend to run late-phase process characterisation on the same platform used at pilot scale.
How does the Ambr 250 HT compare to a 5 L glass bench bioreactor?
The Ambr 250 HT is a scale-down model of a 5 L glass bench bioreactor and a 2,000 L Biostat STR single-use bioreactor at the same time, as long as the scale-down parameter is matched. Manahan et al. (2019, Biotechnology Progress) qualified the Ambr 250 HT against two commercial-scale (>10,000 L) mAb processes using PCA and univariate equivalence testing, and Xu et al. (2017, Biotechnology Progress) demonstrated agreement with 5 L and 1,000 L bench and pilot bioreactors when kLa was used as the scale-down variable. The Ambr 250 HT runs 12 or 24 single-use 100–250 mL vessels in parallel — a throughput a 5 L bench simply cannot match. The trade-off is that the Ambr 250 is single-use only, uses proprietary Sartorius vessels and sensors, and costs several times more than a comparable set of BioFlo 320 or ez2-Control 5 L bench units. Most PD teams use the Ambr 250 HT for parallel process characterisation and DoE, then transfer the winning conditions to a bench BioFlo or Biostat B-DCU for verification.
What is the difference between Applikon my|Control and ez2-Control?
The Applikon my|Control is a compact single-vessel benchtop controller aimed at 50 mL to 3 L working volumes — targeting screening, teaching, and small microbial and cell culture work. It has fewer analog channels and pumps than the ez2-Control but shares the BioXpert web-based software and mobile app, so the user experience is consistent. The ez2-Control is Applikon's PD-grade controller: it handles 1–20 L vessels, ships with four peristaltic pumps and up to six mass flow controllers, supports both glass Applikon Bio vessels and AppliFlex ST single-use vessels, and includes adaptive PID and cascade control for late-stage process characterisation. Both controllers connect to the same BioXpert software and can share process recipes, so a lab can start on my|Control at 250 mL and scale to ez2-Control at 15 L without changing the software front-end. The my|Control is a fit for early screening; the ez2-Control is the bench workhorse for late PD and tech-transfer.
How much does an Ambr 15 or Ambr 250 workstation cost compared to a BioFlo or Applikon bench system?
Sartorius does not publish list prices for the Ambr platform, and used-market data is sparse. A used Ambr 250 HT 12-way workstation has been listed publicly at around USD 150,000, and new Ambr 15 48-vessel systems are widely quoted in industry as being in the mid-six-figure to low-seven-figure range — treat that as informed hearsay, not a datasheet number. By contrast, a used single-vessel Eppendorf BioFlo 120 3 L system lists at roughly USD 11,000–13,000; a used Eppendorf BioFlo 320 3 L at roughly USD 19,000–30,000; a used Eppendorf SciVario twin (two vessels) at roughly USD 48,000; and a used Applikon ez2-Control 3 L system at roughly USD 13,000 (per LabX and EquipNet listings). The order-of-magnitude comparison is that a single Ambr 250 HT workstation costs as much as five to ten complete BioFlo 320 or ez2-Control bench lines. The choice is not dollar-for-dollar — it is whether the DoE throughput of 12–48 parallel vessels justifies replacing five to ten single-vessel bench units.
What scale-down parameter should I match when transferring from Ambr 250 to a 5 L or 2,000 L bioreactor?
Volumetric oxygen transfer coefficient (kLa) is the parameter most published Ambr scale-down studies match, with power per unit volume (P/V) and mixing time as secondary constraints. Xu et al. (2017) qualified the Ambr 250 HT against a 5 L bench bioreactor and a 1,000 L pilot vessel by matching kLa, and reported statistically equivalent CHO growth, viability, titer, and product quality across scales. Sandner et al. (2019) formalised the scale-down model qualification methodology for both Ambr 15 and Ambr 250 systems. Manahan et al. (2019) matched Ambr 250 HT to two commercial-scale mAb processes using PCA and univariate equivalence tests on 21 process attributes. For a first-pass model, match kLa; verify with mixing time; then run a small confirmation set of runs at bench and pilot scale to test univariate equivalence on CQAs. Our scale-up calculator implements constant kLa, constant P/V, and constant tip speed formulas for each of the common bench-to-pilot combinations.
Is the Applikon AppliFlex ST a real competitor to BioBLU and Ambr single-use vessels?
For bench-scale single-use, yes. Getinge Applikon's AppliFlex ST comes as gamma-irradiated pre-sterile single-use bioreactor vessels at 500 mL, 3 L, and 15 L, controlled through the same my|Control or ez2-Control hardware and BioXpert software as the glass Applikon Bio vessels. The distinctive angle is that AppliFlex vessels use a customisable 3D-printed rigid-wall design, which allows non-standard port layouts and inserts for prototype work — Eppendorf's BioBLU is a fixed catalogue design, and Ambr 250 vessels are Sartorius-only proprietary consumables. Where AppliFlex ST does not compete is high-throughput: it is a single-vessel platform, so if you need 12 or 24 parallel single-use vessels for DoE you still need Ambr 250 or Ambr 15. AppliFlex STR (a related but distinct product family, up to ~1,000 L) is Applikon's answer to Biostat STR at pilot scale, not bench-scale — that comparison is covered in our Biostat STR vs HyPerforma vs Xcellerex triadic.

Resources and references

Further reading