How does the shaker agitation rate and orbit affect culture growth?

Generally, agitation speed and orbit affect both the aeration and the mixing of the culture. Greater aeration increases oxygen transfer rate (OTR), boosting cell growth. The size of the orbit affects OTR linearly and the speed has a square-law relationship. Therefore, if the size of the orbit doubles, say from 1/2 to 1," the amount of OTR should double〖RPM〗_1/〖RPM〗_2 = (r_2^2)/(r_1^2 ), then 〖RPM〗_2 = √(〖RPM〗_1^2 (r_1/r_2 ) ). If the speed doubles, the OTR should quadruple. Of course, these are general rules and caution should be taken with shear sensitive cells. However, this information can be used to estimate the conditions needed to obtain the same results on different model shakers. For example, to get the same oxygen transfer in a shaker with a 1 in orbit running at 300 rpm, a shaker with 3/4 in orbit must be run at 350 rpm.

Do Eppendorf shakers come with platforms?

Each Eppendorf shaker is available with multiple platform options, which are ordered separately to give you the flexibility to choose the one that best suits your needs. Dedicated platforms include installed clamps of a single size (ie. only 250 mL clamps) and provide in most cases the best capacity but does not allow for the use of different size clamps or holders. Universal Platforms are designed for use with a combination of various-sized clamps and test tube racks providing maximum flexibility. When ordering a Universal Platform, clamps and test tube racks must also be ordered separately.

What is the temperature offset function?

The temperature offset function on many of our shakers allow you to match a reference point" temperature inside the chamber (culture medium) with the "Actual Value" displayed. The temperature offset function on Innova Incubated shakers allows you to monitor the temperature of the media providing you a clearer and more accurate picture. Please be aware that matching reference point temperatures to the Actual means you have to deal with many variables such as: greater evaporation; heat gains generated by cultures growing - (slowly at first and much more during their growth phase) and heat generated by the friction of media with the glass at high speeds or use of baffled flasks. Over time, the reference point temperature offset may need to change due to these varying conditions.

I want to grow my cultures at 27°C, do I need an incubated shaker with refrigeration?

The Eppendorf Incubated, non-refrigerated Shakers Innova and I-Series are designed to maintain temperatures of ambient plus 5 °C to its maximum operating temperature. The Eppendorf Incubated Excella shakers will operate from ambient plus 7 °C to maximum temperature. It is critical to understand that "ambient temperature is not the temperature on the wall thermometer (room temperature), but the temperature measured one meter from the front of the machine.

Why are some flask clamps supplied with an extra spring set?

This "extra spring set" (we call it a girdle) is included with clamps for 2 L, 2.8 L, 4 L and 6 L flasks. It is intended to be used with the already installed spring set. This girdle helps prevent large flasks from spinning inside the clamp and reduces the risk of flasks becoming dislodged or scored by the steel clamp. One girdle is already in place on the clamp, the other is packed separately. To install this extra “girdle”, follow the instructions in the manual supplied with the shaker.

How is temperature accuracy defined by Eppendorf?

Accuracy is defined as the degree of closeness between the displayed value and the actual value as determined by a traceable device. All Eppendorf Incubated Innova and I-Series shakers have a temperature Accuracy of ±0.1 °C from 30 – 40 °C, ±0.5 °C over the remaining range. New Brunswick Incubated Excella Shakers are accurate within 0.1°C at 37°C.

How is Uniformity defined by Eppendorf?

Uniformity is the ability to maintain uniform temepratures throughout the platform. New Brunswick Incubated Innova Shaker temperatures will not deviate by more than +/- 0.25 °C at 37 °C.

The orbit of a shaker is the distance traveled around the central drive. This can be descibed in inches, centimeters, or milimeters. If our shakers had a one inch (2.54 cm) orbit. That means that that the lateral movement of the platform would equal one inch from one point to another that is 180° opposite that position. All of the New Brunswick. shakers have a circular orbit

Which screws will fit to which platform ?

All of Eppendorf Inc. clamps and accessories are packaged with multiple screws to fix them to our universal platforms, included in M1013-0261 clamp screw kit (Stainless steel platform screw #S2117-3050 (10-32 x 5/16 in (7.9mm)), Stainless Steel, Aluminum, and Aluminum and Phenolic (Plastic) #S2116-3051 (10-24 x 5/16 in (7.9 mm)), and Wood #S2116-3101 (10-24 x 5/8 in (15.87mm)).

How can I disinfect, clean, maintain my shaker?

We recommend cleaning the exterior of our units with a damp cloth or any standard household or laboratory cleaner to wipe the surfaces clean. Do not use abrasive or corrosive compounds to clean the instruments as they may damage the unit and void the warranty. It is the responsibility of theuser to carry out the proper decontamination procedures if hazardous materials are spilled on or inside the equipment. Before using any cleaning or decontamination method other than those suggested by the manufacturer, users should contact Eppendorf Inc. to ensure that the proposed method will not damage the equipment. Commercially available household bleach solutions, when diluted at a 1:10 ratio, are effective in routine decontamination of the instrument. The method for decontaminating a spill depends on the nature of the spill. Spills involving fresh cultures or samples of known concentrations of biomass should be flooded with decontamination solution and soaked for at least 5 minutes before cleanup. Spills involving samples with high concentrations of biomass, or involving organic matter, or occuring in areeas warmer than ambient/room temperature, should be exposed to decontamination solution for at least one hour before being cleaned up. Personnel involved in the cleanup of any spill should wear gloves, safety glasses, and a laboratory coat or gown during the cleanup process. Respiratory protection should be considered for spills where aerosolization is suspected.

Which flask type fits in which clamp ?

Please see the Accessories for New Brunswick™ Shakers: Dimensions and Capacities in the Userguides section of the shaker product page.

Which vessel fits in Eppendorf Test tube racks ?

Please see the Accessories for New Brunswick™ Shakers: Dimensions and Capacities in the Userguides section of the shaker product page.

Why is the triple eccentric drive special ? What is the difference between Innova and Excella Shakers drive ?

The Innova and I-series Triple eccentric drive consists of three individual bearings and eccentric shafts mounted in a triangular fashion for precise uniform circular motion at every point on the platform. The heavy duty drive has a single shaft that utilizes springs to aid in balancing the load. This drive works great with small to medium loads at lower speeds.

How can I shake MTPs ? Which parameters ?

Eppendorf shakers offer a variety of Micro Titer Plate holders that attach to our univeral platforms. Our shakers offer a variety of orbits up to 5.1 cm (2 in) and speeds up to 500 rpm. If mixing is what is needed at higher speeds and smaller orbits you can find Eppendorf Mixers.

How do I use of sticky pads/sticky tape?

Eppendorf Sticky Pads are recommended for use on our sticky pad platform or our sticky pad adapter kit (M1250-9504). On the S44i universal platform sticky pad can be used directly. The adapter kit is easily fixed to our universal platforms. Any size flask can be used with the sticky pad with a 1 in (2.54 cm) orbit up to 250 rpm, any size flask can be used with the 2 in (5.1 cm) orbit up to 200 rpm. To clean the sticky pad, just wash with soap and water. this will revive" the stickiness, but the sticky pad must be completely dry before replacing on the platform.

What is the heavy load platform ?

The Heavy Duty Platform (M1282-9928) is designed for use in the Innova 44 only. This platform is 0.95 cm thick alluminum plate that is recommended for shaking full loads of flasks greater than 1 L at or above 20 % fill volumes or flasks with baffles.

What is the orbit of a shaker?

An orbital shaker moves the platform in a circular shaking motion. The term orbit describes the diameter of this circular movement. Typical orbit sizes are 1.9 cm, 2.5 and 5 cm.

I use two shakers with different orbits. Can I transfer my experimental conditions to a shaker with a different orbit?

Yes, the rpm can be adapted with help of the following formula .

What platform types are offered with the shakers?

Universal platform and a variety of dedicated platforms are available. University platforms offer maximum flexibility having a hole-pattern that allows using virtually any combination of clamps and other accessories. Dedicated platforms come complete with pre-installed clamps of one size. The hole-pattern of the dedicated platform is optimized for the use of one specific size of clamps. It allows in most cased more capacity but can only be used with that size of clamp. Please note that the platform has to be ordered in addition to the shaker.

Why should I have my incubator serviced at regular intervals?

Eppendorf Performance Plans offer a selection of preventive maintenance services which ensure a consistent performance of the device and confidence in the results.

How often does my incubator need to be serviced?

This depends on how intensively it is used and varies depending on the load on the device. However, we recommend to have it serviced at least once a year.

What do you need to look out for before carrying out a service?

The device needs to be decontaminated first. The device must be freely accessible and all samples removed from the device. You should also ensure that the device has cooled down already.

What types of service programs are available for incubators?

The available service programs can be found under the respective instrument in the Service & Support / Maintenance and Certification Services section.

How much are the different incubator service programs?

The cost depends on the model and on the service that is performed. Please contact your local Eppendorf Service. www.eppendorf.com/contact

Please contact your local Eppendorf Service Team. You find the contact data on our homepage or in the information materials. www.eppendorf.com/contact

What is IQ or OQ and what do I need them for?

Installation and operational qualification; the IQ documents that the device has been delivered and installed correctly. The OQ checks the correct functioning of a device. IQ/OQ ensure that your quality management requirements are met and that your device operates properly and in accordance with the manufacturer’s specifications.

How often does the OQ need to be carried out for an incubator?

The company is responsible for technical checks of devices. Eppendorf recommends regular device qualifications depending on the intensity of use, however, they should be carried out at least once a year.

How can my incubator be cleaned/ disinfected?

Use a solution of 70% isopropanol (isopropyl alcohol) and 30% distilled water as a disinfectant. Follow the cleaning guidelines carefully that are described in your user manual.

Which parts of the incubator should be replaced at regular intervals?

Replace the HEPA filter of the CO 2 supply line and the HEPA filter with automatic zero setting * at least once a year. (* Auto-zero filter is only used in R-models.)

What types of training or online training do you offer to enable me to improve my skills?

Please visit the Eppendorf webpage about the Eppendorf Training Center or contact your local Eppendorf Service for further information and a quotation. www.eppendorf.com/training

Why should I have my Orbital Shaker serviced at regular intervals?

As with all products with moving parts, wear and tear is inevitable and can affect how consistently the product operates over a long period of time. Eppendorf products are engineered to minimize wear and tear, but a periodic service allows early identification and tracking of excessive wear before product performance is outside of acceptable tolerances. Regular servicing may also be a regulatory requirement of our users.

How often does my orbital shaker need to be serviced?

Eppendorf recommends a service once every 12 months. However, the regulatory requirements of our users vary greatly and can often be more frequent.

How much are the different orbital shaker service programs?

The cost depends on the product variant and on the level of service that is required. Please contact your local Eppendorf Service centre for a personal quotation. www.eppendorf.com/contact

What is IQ or OQ and what do I need them for?

Installation and Operational Qualification; the Installation Qualification documents that the product has been delivered and installed in accordance with manufacturer recommendations and guidelines. The Operational Qualification checks the correct functioning of a device in accordance with manufacturer recommendations and guidelines (as such, it can only be provided by the equipment manufacturer). IQ/OQ is primarily required in organizations that implement quality management processes but is available to all users.

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New Brunswick S41i - CO₂ Incubator Shaker

New Brunswick™ S41i CO2 Incubator Shaker Double-Stack Configuration

New Brunswick™ S41i CO2 Incubator Shaker

Product Information

Are you looking for a medium-sized, versatile, and stackable CO₂ incubator shaker - a true alternative for placing a small open-air shaker inside a CO₂ incubator? The New Brunswick S41i is a reliable choice for growing labs with medium throughput and limited space or budget. It comes with an integrated high temperature disinfection, the heavy-duty Innova triple-eccentric drive, shelf option for parallel static cultivation and cleaning couldn't get much easier than this.

You need more? Discover our new CellXpert ^®CS220 large CO₂ incubator shaker.

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Click to customize and configure your universal platform accessories

Want to Know More? Contact Our Experts

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Services (8)

Accessories (32)

Spare Parts (3)

VisioNize (4)

8 Services

S41i Incubator Shaker Services – Installation

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Catalog no. 0082050021

S41i Incubator Shaker Services - AdvancedCare

Service Agreement

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Catalog no. 0082050325

S41i Incubator Shaker Services - PremiumCare

Service Agreement

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Catalog no. 0082050320

S41i Incubator Shaker Services - Preventive Maintenance

full maintenance
S41i Incubator Shaker

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Catalog no. 0082050260

Maintenance and Certification epServices

S41i Incubator Shaker Services - IQ/OQ - GxP

Installation Qualification & Operational Qualification
S41i Incubator Shaker

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Catalog no. 0082050300

Certification epServices, Application Support

S41i Incubator Shaker Services - OQ - GxP

Operational Qualification
S41i Incubator Shaker

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Catalog no. 0082050301

S41i Incubator Shaker Services - 1 Year Extended Warranty

Service Agreement

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Catalog no. 0082050340

S41i Incubator Shaker Services - 1 Year Extended Warranty plus

Service Agreement

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Catalog no. 0082050345

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Product Information

Applications

Features

A true alternative for open-air shakers inside traditional CO₂ incubators – the New Brunswick S41i

Open-air shakers inside classical CO₂ incubators seem like an easy way to establish suspension cultures in a lab. However, this approach often limits flask capacity, vessel format, increases maintenance, may interfere with temperature and condensation control, and create contamination points that can put your results at risk.
The New Brunswick S41i is a proven and tested alternative developed with these challenges in mind. It is a reliable choice for growing labs with medium throughput and limited space or budget. The New Brunswick S41i comes with an integrated high temperature disinfection, the heavy-duty Innova triple-eccentric drive, shelve options for parallel static cultivation, and cleaning couldn't get much easier than this.

Main features

• CO₂ incubator and CO₂ shaker in one device: Platform for shake flasks plus up to two shelves (one included) for simultaneous or sole static CO₂ incubation
• Ideal for growing labs or limited lab space: Compact design fits under the bench or double-stacked in a small footprint
• High vessel flexibility and capacity: Plates, tubes, and flasks up to 5L volume e.g., 10x 1L Erlenmeyer flasks
• Max. shaking speed: 25 – 400 rpm (stacked: 25 - 250/400 for top/bottom unit)
• Tight CO₂ specifications for reproducible results: Accuracy: ±0.2% (at 5% CO₂), homogeneity: ±0.1%
• Fast routine cleaning and disinfection: Smooth, seamless stainless-steel chamber with only few internal parts - no drive wheel, fan, crevices, cables, or heating fins inside
• Effective contamination protection: Integrated 120 °C disinfection routine
• Reliable project planning: Proven and tested Innova^{^®} triple eccentric counterbalanced drive with three weight-supporting shafts provides vibration and trouble-free operation for years
• Protect your light-sensitive expression media: The double door system also helps protect the atmosphere inside and reduce CO₂ consumption
• You need more? Discover our new CellXpert^{^®} CS220 large CO₂ incubator shaker

Efficient lab and device management with VisioNize^® Lab Suite

Are you interested in monitoring your lab devices and receiving notifications e.g., for device alarms? A digital, connected lab offers even more.

Gain access to a modular range of digital services and choose what works for your lab. VisioNize Lab Suite offers everything you need as a Lab Manager or Scientist to get started to digitally manage your lab for increased sample security, compliance needs and maintenance management.

Chart your own course to digital lab excellence! Find out more

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Downloads: New Brunswick S41i

Brochure

CO₂Incubator Shaker Evolution

Discover the only CO₂ incubator shaker on the market with 120 °C disinfection — the New Brunswick S41i

PDF 1.9MB

English

Brochure

Incubator Shaker Guide

Innova^® and New Brunswick Lab Shakers from Eppendorf

PDF 4.4MB

English

Brochure

Incubator Shaker Portfolio

PDF .7MB

English

Flyer

Optimized mAb Development

The multi-purpose device for your antibody development: New Brunswick™ S41i CO2 Incubator Shaker

PDF 1.0MB

English

Flyer

VisioNize Lab Suite Shaker Flyer

Be Confident About Your Growth in Motion

PDF 1.9MB

English

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New Brunswick S41i - CO2 Incubator Shaker