Memmert water bath WTB35, 32 L, touch display, +100 °C

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 once
• Thawing and warming processes where the pump module helps even out the temperature distribution
• Food and water analysis with higher sample throughput
• Chemical 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

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:

The stainless steel flat lid (8 openings Ø 107 mm) and the base grid are available as accessories. The complete shaking attachment SV3550 is available as an accessory, and the large basket insert on request through our procurement service.

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.