Description

Series MRHQ: Integrated Rotary Gripper

High-Precision Gripping and Reversing Solution for Industrial Transfer Lines

The Series MRHQ is a modular rotary gripper designed to streamline automation by integrating gripping and rotating functions into a single, compact unit. This integrated design reduces overall length by approximately 20% compared to traditional multi-component setups consisting of a rotary table, adapter, and air gripper.

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Key Performance Advantages

Modular Integration: Gripper sections are unitized for simple replacement and maintenance without altering the rotation angle.
Space-Efficient Design: All piping and wiring are centralized on one side of the body, facilitating easier installation and work operations.
High Mounting Versatility: The body can be mounted from five directions (two ends and three sides). Reference diameters and mounting guide pin holes on three sides ensure easy and accurate alignment.
Precision Adjustment: Standard angle adjustment bolts allow for a rotation range adjustment of ±10° (±5° at each end) for both 90° and 180° rotation models.
Visual Verification: A scale indicator on the side of the gripper unit allows for easy verification and adjustment of rotating positions.

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Technical Specifications

Feature	Specification Details	Source
Bore Sizes (mm)	10, 16, 20, 25
Action	Double acting / Single acting (Normally Open or Closed)
Rotation Angles	90° and 180°
Repeatability	±0.01 mm
Max. Operating Frequency	180 c.p.m
Ambient/Fluid Temp.	5 to 60°C
Adjustable Rotation Time	0.07 to 0.3 s/90° (at 0.5 MPa)
Angle Adjustment	±10° (Total range for 90° and 180°)

Operating Pressure Requirements (MPa)

Unit Type	Size 10	Size 16	Size 20	Size 25
Rotary Unit	0.25 – 0.7	0.25 – 0.7	0.25 – 1.0	0.25 – 1.0
Gripper (Double Acting)	0.25 – 0.7	0.1 – 0.7	0.1 – 0.7	0.1 – 0.7
Gripper (Single Acting)	0.35 – 0.7	0.25 – 0.7	0.25 – 0.7	0.25 – 0.7

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Kinetic Energy and Torque Data

Maintaining operation within the allowable energy values is critical to prevent equipment damage.

Model	Allowable Kinetic Energy (J)	Max. Finger Vertical Load (N)	Max. Roll Moment (N·m)
MRHQ10	0.0046	58	0.53
MRHQ16	0.014	98	1.36
MRHQ20	0.034	147	2.65
MRHQ25	0.074	255	3.88

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Physical Characteristics (Double Acting, 90° Models)

Model	Weight (g)	Cylinder Bore (mm)	Opening/Closing Stroke (mm)
MRHQ10D	306	10	4
MRHQ16D	593	16	6
MRHQ20D	1055	20	10
MRHQ25D	1561	25	14

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Selection and Operational Precautions

Load Energy: Always verify that the load kinetic energy does not exceed the allowable values.
Rotation Time: Use speed controllers to keep rotation time between 0.07 and 0.3 s/90°. Times faster than 0.07s can damage equipment, while times slower than 0.3s may cause sticking or operation failure.
Finger Speed: Adjust opening/closing speeds via speed controllers to ensure repeatable gripping and prevent adverse effects on product life.
Sensing: The unit is equipped with standard magnets for auto switch installation to verify rotation ends and gripper positions (open/closed).
Mounting Attachments: When mounting attachments to the fingers, support them with a spanner to prevent twisting and observe maximum tightening torques (e.g., 0.59 N·m for M3 bolts on Size 16)