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 | Approved Vendor to many US, Canada, and EU Universities |
| International Shipping |
| Customer References Available |
| Training and Installation Options Available |
- Stock: In Stock
- Brand: Sartorius Stedim
- Product Code: 55282
- Condition: Pre-Owned
For Sale Sartorius Stedim Biostat B Bioreactor Controller Single with Biostat RM 50 Rocker
- Fully Functional
- Serviced & in Stock
- Current Model
- Good cosmetic condition
- Technical sales consultation available
- CONTINENTAL US 120 DAYS WARRANTY & 60 DAYS INTERNATIONAL
Here is what you will receive:
- Sartorius Stedim Biostat B Bioreactor Controller Ref.: BB-8821050
- Biostat RM 50 basic rocker platform with Load Cell
- Power and communication cables
- Omron Ethernet cable
- (2) Biostat RM Filter Heater
- (4) Pressure gauges
- (2) Biostat RM heating mats
- (2) Biostat RM temperature sensors
Please note: Single-Use Flexsafe RM bags, single-use sensors, and other consumables are not included.
Biostat RM Bioreactor System Configuration:
| Rocker Platform: | 1 |
| Bag Sizes: | 50L Flexsafe RM Bags |
| Working Volume: | 5-25 L |
| Gas Mixing: | 4-gas mixing with headspace outlet, 4 Mass Flow Controllers (MFC), 4 external rotameters for quick readout. |
| Gas Flow Ranges: (Overlay) | - C02: 0-500 ccm (MFC) - N2: 0-3 lpm (MFC) - 02: 0-1.5 lpm (MFC) - Air: 0-3 lpm (MFC) |
| Drive Unit: | Biostat RM 50 basic rocker platform |
| Rocking Speed Control Range: | 8 - 42 rpm |
| Rocking Angle Control Range: | 4° -10° |
| Loadcell weighing capacity: | 0 - 30 kg, accuracy 10 g |
| Temperature Control: | Heating only from RT up to 40 DegC via heating mats in Biostat RM unit. Heating plates: 2 × 140 W. Room air is used for cooling. |
| Built-in Pumps: | 2 Watson Marlow 114, fast load pumps: Base, Subs-A |
| Pump Designations: | Fixed Speed for Base Addition: 5 rpm, Speed Controlled for Feed Addition Subs-A: 5-150 rpm |
| PH Control: | 4-10 pH, single-use optical pH sensor |
| PO2 Control: | 0-250% sat, single-use optical DO sensor |
Customization/Options: N/A
Testing performed by our in-house service team:
The Biostat B/RM 50 Rocker System passed all tests and was found to be fully functional:
- We verified the power and communication to the system.
- We tested the operation of the touchscreen display.
- We checked the functionality of all peristaltic pumps.
- We inspected all gas tubing connections for secure fitment and leaks.
- We tested the accuracy and uniformity of temperature control.
- We evaluated the bag rocking mechanism for consistent motion.
- We tested alarm and safety interlock functionality.
- We tested pH and o2 sensor output functionality.
- We tested the load cell on the rocker mechanism.
Instrument Overview:
- The Sartorius Stedim Biostat B is a benchtop bioreactor controller for flexible cell culture conditions.
- It supports single-use bag systems and integrates with the RM 50 rocker for gentle mixing.
- The Biostat B allows control of key parameters like pH, DO, and temperature.
- Biostat RM 50 Rocker accommodates 1–50 L bags with adjustable rocking angles and speeds.
- The system features touch panel controls and ports for sensors and gas inputs.
- Sartorius Biostat B is commonly used for scale-up studies and process development.
Instrument Application:
- Expansion of suspension cell cultures
- Protein and antibody production
- Vaccine development
- Process development and scale-up studies
The Key Features:
- Compact benchtop bioreactor system
- Supports rocking motion mixing
- Handles bags up to 50 liters
- Precise pH and DO control
- Integrated temperature regulation
- Ideal for scale-up and R&D work
Additional technical info:
Video Overview:
About us
How we pack
VIEW SOME OF THE CUSTOMERS WE HELPED HERE
WHY DO CUSTOMERS MAKING CRITICAL LAB PURCHASES CHOOSE TO ORDER WAVE BIOREACTORS FROM US?
They want to ensure the controller has been fully tested with live feedback from the rocker, verifying PID control accuracy across temperature, pH, and dissolved oxygen loops.
They want to confirm that the rocker platform delivers correct agitation angles and speeds, tested under simulated load to identify mechanical asymmetry, drift, or motor lag that can disrupt shear-sensitive cultures.
They want assurance that the rocker motion controller executes full-duty cycles without servo skipping, vibration anomalies, or uncontrolled ramp acceleration, common failure points in poorly serviced systems.
They want to ensure pH and DO channels have been calibrated using two-point measurements that verify the supplied probe inputs are capable of adjusting to replacement probes.
They want to confirm that electronic noise and EMI levels at the detector/amplifier stage remain within tolerance and will not distort signal fidelity.
They want to ensure that all pump heads (Ex, base/acid/antifoam/feed) are functional, calibratable, and cycle-tested, preventing dosage drift or reagent starvation during long perfusion runs.
They want to ensure the controller has been tested through full-simulation runs with live signal feedback from sensors, not just idle boot checks.
They want peace of mind, knowing their instrument is backed by a warranty from a company that can stand behind it.
- We have experience servicing and repairing these instruments.
- This instrument goes through all the described service steps before shipping. see the questions section below
- We offer detailed photos and videos of the instruments you buy.
- We are an approved pre-owned equipment vendor to many large US, Canadian, and EU Universities.
- We are an approved pre-owned equipment vendor to many Fortune 500 US and International Biopharma companies.
- Technical sales consultation available
- Remote installation and instrument operation training may be available.
- On-site installation may be available in the Boston Area (New England area)
- US or International shipping is no problem (see the shipping tab on how we pack and feel at ease)
- Warranty
- An extended warranty may be available
- You get after-sales technical support
- Customer references are available
- The instrument will be fully functional!
- Smooth process from the initial quote to order fulfillment
This will ship via freight. Please contact us with your zip code to obtain a shipping quote.
ESQ
400#
COMMON QUESTIONS AND ANSWERS BELOW
What are the steps you take to verify, service, and confirm the functionality of the Biostat B/RM 50 Rocker System?
We verify various instrument functions individually and together, performing necessary repairs or maintenance to bring the instrument to our quality standards..
- We verified the power and communication to the system.
- We tested the operation of the touchscreen display.
- We checked the functionality of all peristaltic pumps.
- We inspected all gas tubing connections for secure fitment and leaks.
- We tested the accuracy and uniformity of temperature control.
- We evaluated the bag rocking mechanism for consistent motion.
- We tested alarm and safety interlock functionality.
- We tested pH and o2 sensor output functionality.
- We tested the load cell on the rocker mechanism.
What supplies do I need?
You will need the consumables starting out:
Can I view the Biostat B/RM 50 Rocker System in person at your facility or do a live Zoom demo before it is shipped to me?
We invite you to visit our facility for an on-site demo or feel free to request a virtual Zoom demo of the instrument you are interested in.
What about the warranty? Installation, training, maintenance?
Warranty Terms:
- The instrument comes fully warranted for both parts and labor.
- The customer should retain all packing materials during the warranty period.
What should I watch out for when buying a Biostat B/RM 50 Rocker System used/pre-owned from another lab?
- Make sure the instrument is properly packed for shipping and will arrive safely. If the instrument is large, request to have it packed in a wooden crate.
- Confirm that there is no physical damage or any misaligned internal components.
- Ask what accessories are included.
- Ask how long the warranty is and what it covers.
Here is what our technical team tests so you can request something similar and ensure your instrument will be fully functional.
- We verified the power and communication to the system.
- We tested the operation of the touchscreen display.
- We checked the functionality of all peristaltic pumps.
- We inspected all gas tubing connections for secure fitment and leaks.
- We tested the accuracy and uniformity of temperature control.
- We evaluated the bag rocking mechanism for consistent motion.
- We tested alarm and safety interlock functionality.
- We tested pH and o2 sensor output functionality.
- We tested the load cell on the rocker mechanism.
We recommend inspecting the instrument in person or requesting a virtual demo; this will allow you to evaluate the condition and performance of the instrument you are considering purchasing.
Do you have a Biostat B/RM 50 Rocker System on hand?
- This is a common model, and we generally stock multiple instruments, accessories, and many replacement parts to back up our warranty.
I found it elsewhere for less. What goes into your price?
We acknowledge that sometimes you can purchase this model instrument elsewhere, possibly for less.
Here are some of the reasons for our price.
- We may offer longer warranty terms.
- We cover shipping costs during the warranty period. (Customer is required to save packing materials for the duration).
- We have to have technical staff that can do the testing/repairs and after-sales support if there are any issues.
- We invest considerable time into the testing and service of each instrument we sell.
- We have to purchase various testing supplies (often expensive) to perform testing.
- We have to purchase any missing required accessories to make the instruments complete.
- We have to procure and stock service parts to support our warranty.
- We have extensive experience packing sensitive instruments. See the shipping section in the website menu for info on how not to pack.
- We guarantee that the instrument will be functional.
This procurement is for a University or College. Are purchase orders with NET terms accepted?
- If you are a US or Canadian customer, we are likely already a registered vendor in your University's vendor system. This would greatly expedite the process of PO approvals and get this instrument into your lab faster.
- POs are accepted from US and Canadian universities.
How fast will you ship?
- We can ship within a few days to two weeks. Shipping time depends on the current demand for our instruments. Members of our sales team will be able to offer current delivery estimates.
Will my instrument be insured during shipping?
- All instruments shipped within the USA and internationally are fully insured. This applies as long as we are the shipper and handle shipping arrangements.
- If the buyer handles shipping, then shipping insurance responsibility falls to the buyer; we highly advise that the buyer obtain shipping insurance from their carrier.
How do you pack? Have you packed and shipped Biostat B/RM 50 Rocker System Instruments in the past? Do you ship Internationally?
Packing
- Most larger instruments ship in fully enclosed ISPM15-certified wooden crates with proper padding underneath, and the sides have moving components braced.
- Accessories are packed safely in boxes with padding and then safely packed inside the crate.
- We may not use a crate for local deliveries to save you money *if delivered by us.
- We often use “tilt’ & “shock” indicators on the crates to ensure the crate has not been excessively tilted and dropped where equipment may suffer damage.
- Photos are taken during the packing process to make sure nothing is missed.
USA/Canada Shipping
- Within the US and Canada, we will ship via selected freight carriers. We do not use low-price/high-damage carriers as we want the equipment to get safely to you.
International Shipping
- Internationally, we will only ship via Air Freight or Air Parcel (such as UPS or DHL), which provides reliability, no exposure to Ocean weather, and timely delivery.
We have extensive experience packing and shipping fragile instruments globally.
Our experience and process
- We have safely packed and shipped thousands of sensitive analytical instruments.
How much will I save buying it pre-owned, and is it worth it?
A lot…and it is undoubtedly worth it, and here is why. Feel free to ask for feedback from hundreds of customers who bought from us.
- You will pay less than half vs. buying a new instrument. Why not spend leftover funds on another instrument for your lab?
- You will get our standard warranty, plus, when available, an option to obtain an extended warranty agreement.
- Know that your instrument was tested and working the day it left our facility and is covered if there are faults.
- Get extra peace of mind by adding an extended warranty or service agreement when such an option is available.
Sustainability
- Well, this one is easy: buying a pre-owned instrument is great for the planet; you are reducing unnecessary waste, CO2 output, and water use that would be used during the manufacturing process.
I have more questions; I want to receive a formal quote.
Absolutely! Please give us a call (1-617-397-3486) or complete this form to get your questions answered or receive a formal Quote.
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