ⓘ This product description has been translated from German using AI. Despite careful review, we do not guarantee that the translation is error-free; in case of doubt, the German version shall prevail.
Product information "Memmert shaking device SV3550 with holding frame for WTB35 and WTB50"
The shaking device SV3550 allows the large WTB35 and WTB50 water baths to be used for shaking. It is supplied including holding frame and moves the load back and forth horizontally. The shaking frequency is 35 to 150 strokes per minute.
The holding basket (large) is not part of the scope of delivery. Memmert advises ordering it as well: B66309 is also available. Further accessories also available are insert racks for test tubes (B66244, B66303 and B66304) and clamps for flasks of 100, 200, 300 and 500 ml (B66305, B66306, B66307 and B66310).
Typical applications
Typical uses of the WTB35 and WTB50 water baths:
Shaking incubation at constant temperature
Tempering larger sample quantities or several racks at the same time
The Memmert water bath WTB35 belongs to Memmert's new water bath generation.
The Memmert water bath WTB35 tempers larger sample volumes between +10 and +100 °C. At 32 litres, it is suitable for several racks or larger vessels at once.
New model generation
The WTB35 is part of the full relaunch of the Memmert water bath range for price list 01-2027, which replaces the previous model line entirely. Accessories such as lids, base grids, insert racks and test tube racks now come with new order numbers. The pump module P7 for circulating the water bath can now be ordered as a factory option, previously the circulation pump was a separate retrofit part. When reordering accessories, it is worth checking the current order number, listed further down in this description.
Touch display and controls
A 3.5-inch colour graphic touch display with 2-point calibration controls the temperature to an accuracy of 0.1 °C. The customisable remote screen “CustomView” allows its own display layout, useful when several identical units run in the same lab. The display shows the key operating values at a glance, no separate control panel is needed.
Stainless steel tank and cleaning
The deep-drawn stainless steel tank (1.4301) is made without corners or edges, the integrated central drain system makes emptying easier given the larger fill volume here. The heater sits outside the chamber, the housing is stainless steel, four adjustable feet carry the extra weight safely. That makes daily cleaning and disinfection between two different batches easier.
Connection and operation
Connected load is 2,840 watts at 230 V and 1,840 watts at 115 V (50/60 Hz). The 115 V version is available as option X2 at no extra cost. A standard lab socket is enough, no dedicated high-current connection is needed.
Size within the WTB range
At 32 litres, the WTB35 is the second-largest model, between the WTB24 and the WTB50. Controls, material and drain system are identical across the whole range, what mainly differs is internal dimensions, capacity, weight and, from the WTB15 upward, whether the pump module P7 is available.
Footprint and transport
Internal dimensions are 650 x 140 x 450 mm, external with the flat lid 747 x 547 x 292 mm, with the sloped lid 747 x 547 x 404 mm. Packed, the WTB35 arrives in a box measuring 840 x 680 x 495 mm, gross weight 37.5 kg, net weight 32.5 kg. Because of the weight, a second person is recommended for transport into the lab.
Pump module P7
For the WTB35, the pump module P7 can be ordered as a factory option and handles continuous circulation of the heat transfer medium, useful at larger fill volumes and dense loading. Without P7, the water surface stays calm, for example for gently thawing sensitive samples.
Calibration and documentation
A factory calibration certificate is not part of the standard equipment and is not included in the scope of delivery. Anyone who needs documented calibration, for example for a quality management system under ISO 9001 or for test equipment monitoring, can order it as an additional chargeable service through our procurement service. That way the initial commissioning can be documented without having to ship the unit off separately.
Typical applications
With a setting range of +10 to +100 °C, the WTB35 covers a wide range of tempering tasks in the lab. With several test tube racks or the basket insert, larger sample series can be processed in a single run.
Tempering larger sample volumes or several racks at onceThawing and warming processes where the pump module helps even out the temperature distributionFood and water analysis with higher sample throughputChemical and microbiological routine work that needs documented temperature control
For larger sample volumes or several racks at once, the WTB35 is a good fit, with the pump module P7 available for even mixing. Anyone who needs still more capacity will find the WTB50 as the largest model in the range.
Manufacturer's WEEE registration number (Memmert GmbH + Co. KG, Stiftung EAR): DE 66812464.
Memmert units bought from us are covered for three years from delivery: the first 12 months are followed by a 24-month warranty under Memmert's terms, handled through us. Your statutory rights remain unaffected.
Technical details
Capacity32 litres
Internal dimensions (L x W x H)650 x 140 x 450 mm
External dimensions with flat lid (L x W x H)747 x 547 x 292 mm
External dimensions with sloped lid (L x W x H)747 x 547 x 404 mm
Packed dimensions (L x W x H)840 x 680 x 495 mm
Temperature setting range+10 to +100 °C
Working temperature rangeat least 5 °C above room temperature up to +100 °C (with lid, depending on ambient pressure)
Setting accuracy0.1 °C
Control unit3.5″ colour graphic touch display, customisable remote screen “CustomView”, 2-point calibration
MaterialStainless steel 1.4301 (chamber and housing)
Drain systemIntegrated central drain system, tank without corners or edges
Installation4 adjustable feet
Voltage / power230 V, 50/60 Hz, 2,840 W (optional 115 V, 50/60 Hz, 1,840 W, option X2)
Net weight / gross weight32.5 kg / 37.5 kg
Scope of delivery
1× Memmert water bath WTB35 (base unit)1× stainless steel sloped lid
A factory calibration certificate is not part of the scope of delivery, details are given above in the section Calibration and documentation. The pump module P7 is also a factory option and not fitted as standard.
Accessories for the WTB35
The following accessories are available for the WTB35 under the new order numbers:
Stainless steel flat lid, 8 openings Ø 107 mmB65808
Base gridB65816
Pump module P7 (factory option, circulates the water bath)P7
Basket insert (large)B66309
Shaking attachment (complete)SV3550
The stainless steel flat lid (8 openings Ø 107 mm) and the base grid are available as accessories. The complete shaking attachment SV3550 and the large basket insert are also available as accessories.
Individual requirements & procurement service
Insert racks and test tube racks with new order numbers are also available for the WTB35, matched to the relevant size. Our procurement service helps with choosing the right accessories, with spare parts, and with individual calibration requests. As a factory option, Memmert also offers IQ/OQ documents. We order these with the device on request.
The Memmert water bath WTB50 belongs to Memmert's new water bath generation.
The Memmert water bath WTB50 is the largest model in the new WTB range at 45 litres, built for high sample throughput and several test tube racks at once.
New model generation
The WTB50 is part of the full relaunch of the Memmert water bath range for price list 01-2027, which replaces the previous model line entirely. Accessories such as lids, base grids, insert racks and test tube racks now come with new order numbers. The pump module P7 for circulating the water bath can now be ordered as a factory option, previously the circulation pump was a separate retrofit part. When reordering accessories, it is worth checking the current order number, listed further down in this description.
Touch display and controls
Temperature control runs through a 3.5-inch colour graphic touch display with 2-point calibration, setting accuracy is 0.1 °C. The customisable remote screen “CustomView” can be adapted to your own workflow. The display shows the key operating values at a glance, no separate control panel is needed.
Stainless steel tank and cleaning
The deep-drawn stainless steel tank (1.4301) without corners or edges has an integrated central drain system, important at the largest fill volume in the range. The heater sits outside the chamber, the housing is stainless steel, four adjustable feet carry the weight safely. That makes daily cleaning and disinfection between two different batches easier.
Connection and operation
Connected load is 2,840 watts at 230 V and 1,840 watts at 115 V (50/60 Hz). The 115 V version is available as option X2 at no extra cost. A standard lab socket is enough, no dedicated high-current connection is needed.
Size within the WTB range
At 45 litres, the WTB50 is the largest of the six WTB models. Controls, material and drain system are identical across the whole range, what mainly differs is internal dimensions, capacity, weight and, from the WTB15 upward, whether the pump module P7 is available.
Footprint and transport
Internal dimensions are 650 x 190 x 450 mm, external with the flat lid 747 x 547 x 342 mm, with the sloped lid 747 x 547 x 454 mm. Packed, the WTB50 arrives in a box measuring 840 x 680 x 495 mm, gross weight 38.5 kg, net weight 33.5 kg. As the largest and heaviest model in the range, it is best set up by two people.
Pump module P7
For the WTB50, the pump module P7 can be ordered as a factory option and handles continuous circulation of the heat transfer medium at the largest fill volume in the range. Without P7, the water surface stays calm.
Calibration and documentation
A factory calibration certificate is not part of the standard equipment and is not included in the scope of delivery. Anyone who needs documented calibration, for example for a quality management system under ISO 9001 or for test equipment monitoring, can order it as an additional chargeable service through our procurement service. That way the initial commissioning can be documented without having to ship the unit off separately.
Typical applications
With a setting range of +10 to +100 °C, the WTB50 covers a wide range of tempering tasks in the lab. With high sample volumes, the large capacity cuts down on the number of runs needed in daily lab work.
Tempering large sample volumes or many vessels across several test tube racksHigh-throughput lab routine where a larger bath cuts down on waiting timeThawing and warming larger batches, with active circulation via the pump module if neededRunning as a central water bath for several workstations in chemistry or food labs
As the largest model in the range, the WTB50 is suitable for labs with high sample throughput or several test tube racks running in parallel. For smaller sample volumes, the more compact models in the WTB range, such as the WTB35, are often the more economical choice.
Manufacturer's WEEE registration number (Memmert GmbH + Co. KG, Stiftung EAR): DE 66812464.
Memmert units bought from us are covered for three years from delivery: the first 12 months are followed by a 24-month warranty under Memmert's terms, handled through us. Your statutory rights remain unaffected.
Technical details
Capacity45 litres
Internal dimensions (L x W x H)650 x 190 x 450 mm
External dimensions with flat lid (L x W x H)747 x 547 x 342 mm
External dimensions with sloped lid (L x W x H)747 x 547 x 454 mm
Packed dimensions (L x W x H)840 x 680 x 495 mm
Temperature setting range+10 to +100 °C
Working temperature rangeat least 5 °C above room temperature up to +100 °C (with lid, depending on ambient pressure)
Setting accuracy0.1 °C
Control unit3.5″ colour graphic touch display, customisable remote screen “CustomView”, 2-point calibration
MaterialStainless steel 1.4301 (chamber and housing)
Drain systemIntegrated central drain system, tank without corners or edges
Installation4 adjustable feet
Voltage / power230 V, 50/60 Hz, 2,840 W (optional 115 V, 50/60 Hz, 1,840 W, option X2)
Net weight / gross weight33.5 kg / 38.5 kg
Scope of delivery
1× Memmert water bath WTB50 (base unit)1× stainless steel sloped lid
A factory calibration certificate is not part of the scope of delivery, details are given above in the section Calibration and documentation. The pump module P7 is also a factory option and not fitted as standard.
Accessories for the WTB50
The following accessories are available for the WTB50 under the new order numbers:
Stainless steel flat lid, 8 openings Ø 107 mmB65808
Base gridB65816
Pump module P7 (factory option, circulates the water bath)P7
Basket insert (large)B66309
Shaking attachment (complete)SV3550
The stainless steel flat lid (8 openings Ø 107 mm) and the base grid are available as accessories. The complete shaking attachment SV3550 and the large basket insert are also available as accessories.
Individual requirements & procurement service
Insert racks and test tube racks with new order numbers are also available for the WTB50, matched to the relevant size. Our procurement service helps with choosing the right accessories, with spare parts, and with individual calibration requests. As a factory option, Memmert also offers IQ/OQ documents. We order these with the device on request.