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MH2620/2820

Characteristics

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

image:Variable drop volume  capability

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.

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) , i.e. no ink contact.

Specifications / External dimensions

Inkjet head with support for droplet enlargement and high-viscosity inks

Choose from two models to suit your application with droplet volumes of 15-45pl and 27-54pl.

image:Specifications / External dimensions

  MH2620 MH2820
Method Piston pusher with metallic diaphragm plate
Print Width 64.9 mm(2.6")
Number of nozzles 384 (2 × 192 channels), staggered
Nozzle spacing (Within a row) 1/75"(0.339 mm)
Nozzle spacing (Row to row distance) 0.9948 mm
Compatible ink UV, Solvent, Aqueous, Others.
Total printhead dimensions 120(W) × 75.56(D) × 13.2(H) mm (4.72" × 3.0" × 0.5") excluding cables
Weight 108g
Max.number of color inks 2 colors
Operating temperature range Up to 80℃
Temperature control Integrated heater and thermistor
Drop volume/Jetting frequency 15pl - 30kHz, 30pl - 20kHz, 45pl - 14kHz
*depending on the ink
27pl - 30kHz, 54pl - 20kHz
*depending on the ink
Viscosity range 11-13 mPa•s
Surface tension 28-35mN/m
Grey-scale 4 levels 3 levels
Total Length 256 mm (standard) including cables
Ink port Yes (standard)/No (optional)
Number of ink ports 1 color : 1 × dual/2 colors: 2 × dual
Alignment pin direction Front (standard)/Back (optional)
  • *Results obtained from continuous jetting test using standard Ricoh test ink.

image:Specifications / External dimensions