Bandelin SONOREX SUPER RK 156 BH ultrasonic bath with heating, 9 L, 35 kHz, 646

Long pipettes, tubing, tools or torches rarely fit into a square tank. The Bandelin SONOREX SUPER RK 156 BH, with internal dimensions of 500 x 140 x 150 mm, is deliberately designed to be narrow and long, thus providing a total capacity of 9.0 l for elongated items that cannot be accommodated in the more compact SUPER RK models.

Narrow tank for elongated objects

Whilst most SUPER RK models have approximately square tanks, the RK 156 BH, measuring 500 mm in length and just 140 mm in width, is tailored to slender items: shorter laboratory glass rods, tools, hoses or several smaller instruments placed side by side. The working capacity is 6.0 l, and four vibration systems ensure uniform ultrasonic agitation across the entire length of the tank.

600-watt heater for thorough cleaning

At an operating frequency of 35 kHz, the RK 156 BH delivers 860 watts of peak power and 215 watts of rated power; the SweepTec function prevents standing waves across the elongated tank shape. The 600-watt heater covers a range of 30 to 80 °C and is fitted with dry-run protection; the timer ranges from 1 to 15 minutes (± 5 %) or continuous operation, controlled via rotary knobs for time and temperature.

Ball valve drain and robust construction

A G 1/4 ball valve on the right-hand side allows the tank to be drained in a controlled manner. The tank and housing are made of 1.4301 stainless steel with a thickness of 1.0 mm; the external dimensions of 530 x 165 x 300 mm and the net weight of 7.3 kg correspond to the narrow, elongated design. The housing is IP 32-rated, and the 2-metre power cable is permanently attached to the unit.

When the BH design is suitable

For compact, roughly cube-shaped items to be cleaned, the standard SUPER RK models, such as the RK 510 H (9.7 l, but with a more square tank), are often the more practical choice. The RK 156 BH is worth considering where the length of the items to be cleaned is the main issue, such as with rods, longer tools or multiple objects that need to be placed side by side rather than on top of one another.

Product range breakdown: SUPER RK, DIGITEC DT and smart ST

The slim BH design is currently only available within the SUPER RK series with classic rotary knob controls. Those looking instead for digital button controls with an LED display will find them in the DIGITEC DT series, whilst the smart ST series features touchscreen controls with programme memory. We also offer Elma Elmasonic ultrasonic baths, although these are built with different tank shapes.

Use and maintenance

The working capacity of 6.0 l is less than the total capacity of 9.0 l, ensuring that no water spills over the rim when the items to be cleaned are placed inside. A concentrate from Bandelin’s TICKOPUR range is suitable as the cleaning agent. Freshly prepared liquid should be run briefly in continuous operation before the first cleaning cycle, so that dissolved air escapes and cavitation can take full effect. After use, the tank can be drained completely via the ball valve, leaving no residue, and then wiped dry.

Typical applications

• Cleaning of elongated tools, rods and hoses
• Simultaneous cleaning of several smaller instruments side by side
• Pre-cleaning of narrow laboratory glassware prior to further processing
• Degreasing of elongated metal parts in workshops and industry

Frequently asked questions

Why is the tank so narrow and long?
The internal dimensions of 500 x 140 x 150 mm are specifically designed for elongated items that do not fit into more square-shaped tanks.

Where is the drain?
On the right, as a ball valve with a G 1/4 connection.

Is the RK 156 BH heated?
Yes, with a heating power of 600 watts and a temperature range of 30 to 80 °C.

How many vibration systems does the unit have?
Four, distributed along the entire length of the tank to ensure uniform agitation.

Technical details

Scope of delivery

• 1x Bandelin SONOREX SUPER RK 156 BH ultrasonic bath with heater
• Fixed mains lead (2 m)
• Instructions for use

The insert basket and lid are not included in the scope of delivery and are available separately.

Individual requirements and procurement service

For the K 6 BL insert basket, the D 156 lid or another tank shape from the SUPER RK series, individual procurement requirements apply. You can request a quote without obligation via our procurement service for suitable accessories, a replacement basket or another model from the SONOREX range.