LM40B Box-Type Peristaltic Pump, 236 mL/min (CAT#: STEM-AL-2627-ZJF)

The LM40B is a box-type peristaltic pump intended for low-flow liquid transfer. Speed can be adjusted from the keypad panel or by using a rotary encoder. An LED screen displays the current speed, and indicator lights show operating status. The unit supports keyboard, RS485 communication, foot-switch, and analog control. It is compatible with RZ1030, RZ1030B, RZ01B, and RZ02 pump heads. The supported tubing range enables use with small-bore fluid paths. External control connections allow speed regulation, direction switching, and start or stop operation. Its compact enclosed drive format is suitable for installation in laboratory instruments and fluid-handling equipment.

Speed Range: 0.1 to 400 rpm
Speed Accuracy: ±0.1 rpm
Maximum Flow Rate: 236 mL/min
Compatible Pump Heads: RZ1030, RZ1030B, RZ01B, RZ02
Compatible Tubing Inner Diameter: 0.64 to 3.2 mm
Compatible Tubing Wall Thickness: 0.8 to 1.6 mm
Foot-Switch Input: Start and stop control in keyboard mode
Speed-Control Input: Multiple analog speed-control signals in external control mode
Direction Input: Direction switching in external or foot-switch mode
Start Input: Start and stop switching in external control mode
Communication Interface: RS485
Power Supply: DC 24 V ±10%
Power Consumption: 20 W
Operating Temperature: 0 to 40°C
Operating Relative Humidity: Less than 80%
Protection Rating: IP31
Weight: 0.9 kg excluding pump head

Keypad and rotary-encoder operation
Real-time LED speed display
LED status indication
Local and remote control capability
External speed regulation
Reversible flow control
Foot-switch operation
Compact enclosed housing