About MH2620/2820 Print Head

- Apr 18, 2018-

Here are the MH2620/2820 Ricoh nozzle's characteristics: 

1. Droplet enlargement

This head is capable of jetting a variety of ink types in large droplet sizes. Please choose from two models to suit your application: Multi-drop 15-45pl (MH2620) or 27-54 pl (MH2820)

Heated operation up to 80ºC

The built-in heater heats the ink to up to 80ºC for jetting, providing support for high-viscosity inks.

Variable drop volume  capability

2. The multi-drop capability allows the creation of a range of drop sizes enabling grey-scale printing.

Excellent durability and extended service life

Ricoh inkjet print heads are made of stainless steel. These heads are highly robust and offer excellent anti-corrosion properties for multiple inks, resulting in excellent durability and extended service life.

3. Support for different inks

With its built-in heater, these heads are capable of jetting high-viscosity inks. Additionally, the ink path is isolated from the actuator (piezo elements) , and no ink contact.

MH2620/2820 Details:

MH2620 2820.png

MethodPiston pusher with metallic diaphragm plate
Print Width64.9 mm(2.6")
Number of nozzles384 (2 × 192 channels), staggered
Nozzle spacing (Within a row)1/75"(0.339 mm)
Nozzle spacing (Row to row distance)0.9948 mm
Compatible inkUV, Solvent, Aqueous, Others.
Total printhead dimensions120(W) × 75.56(D) × 13.2(H) mm (4.72" × 3.0" × 0.5") excluding cables
Max.number of color inks2 colors
Operating temperature rangeUp to 80℃
Temperature controlIntegrated heater and thermistor
Drop volume/Jetting frequency(MH2620):15pl - 30kHz, 30pl - 20kHz, 45pl - 14kHz

*depending on the ink

(MH2820): 27pl - 30kHz, 54pl - 20kHz 
*depending on the ink

Viscosity range11-13 mPa•s
Surface tension28-35mN/m

(MH2620): 4 levels

(MH2820): 3 levels

Total Length256 mm (standard) including cables
Ink portYes (standard)/No (optional)
Number of ink ports1 color : 1 × dual/2 colors: 2 × dual
Alignment pin directionFront (standard)/Back (optional)

Print Head 1.png

Print Head 2.png

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