MHZ2 / MHZL2 Parallel Air Gripper Full Product Introduction

Brand: SOLH by Richge Technology 

Product Overview

     SOLH MHZ2 (standard stroke) and MHZL2 (long stroke) are dual-piston synchronous parallel air grippers. Driven by symmetric dual pistons and precision linear guide rails, the jaws open and close in parallel without deflection, delivering ultra-high repeat positioning accuracy. Available bores: 10/16/20/25mm, supporting three operation modes: double acting (D), single acting normally open (S), single acting normally closed (C). Multiple interchangeable jaw styles and body port layouts are optional, compatible with M9BW magnetic switches to detect open/closed position signals for PLC interlock.

     -- MHZ2: Standard short-stroke universal gripper, designed for high-speed & high-cycle automated mass production

     -- MHZL2: Extended long opening stroke variant, for deep cavity and large-size workpiece handling

     Both series share identical mounting dimensions and spare parts, fully interchangeable with imported equivalent grippers. Widely deployed in 3C electronics, precision hardware, packaging automation and small workpiece loading/unloading stations.

Complete Model Coding Rule

     Universal format:Series-Bore-Action-Jaw Option-Body Port Option-Magnetic Switch Model-Switch Quantity

  1. Code Segment Definition

   1.1 Series

     -- MHZ2: Standard stroke 2-jaw parallel gripper

     -- MHZL2: Long stroke 2-jaw parallel gripper

   1.2 Bore: 10 / 16 / 20 / 25 mm

   1.3 Action Mode

     -- D: Double Acting – Air in for clamp, reverse air for release, maximum clamping force, mass production standard

     -- S: Single Acting NO Normally Open – Air supply clamps; spring automatically releases when power off, avoids workpiece crushing on hot stamping stations

     -- C: Single Acting NC Normally Closed – Air supply releases; spring holds clamping force without air pressure, prevents workpiece dropping for robot overhead handling

   1.4 Jaw Option

     -- Blank: Standard basic jaw

     -- 1: Side tapped jaw for mounting extended custom fixtures

     -- 2: Through-hole jaw with bolts penetrating for fixture fixing

     -- 3: Thin flat jaw for thin sheets & narrow gap workpieces

     -- N: Narrow width jaw, slim body for compact confined equipment layout

   1.5 Body Port Layout

     -- Blank: Standard side air ports

     -- E: End side port type (compatible with single/double acting)

     -- W: End axial port pre-installed Φ4 double push-in fitting (only double acting)

     -- K: End axial port with Φ4 push-in fitting (only single acting)

     -- M: End axial M5 straight thread port (only single acting)

  1.6 Magnetic Switch

     -- Blank: Without position detection switch

     -- M9BW / M9BL: Standard magnetic reed switch to feedback open/closed status

   1.7 Switch Quantity Suffix

     -- Blank: 2 pcs switches as standard, detect both clamp & release positions

     -- S: 1 pc single switch for single status monitoring

  2. Order Reference Examples

   2.1 MHZ2-16D-N-M9BW

     -- Standard stroke gripper, bore 16, double acting, narrow jaw, 2pcs M9BW magnetic switches, basic side port body.

   2.2 MHZL2-20D-3-E-M9BW-S

     -- Long stroke gripper, bore 20, double acting, flat thin jaw, end side port body, single M9BW magnetic switch.

MHZ2 VS MHZL2 Core Comparison Table

Shared Internal Structure & Core Advantages (MHZ2 & MHZL2)

  1. Symmetric Dual Piston Synchronous Drive

     -- Left & right pistons push jaws synchronously with balanced stress, no lateral shift or twisting slip during gripping, stable positioning for micro components like chips & PCB.

  2. High Wear-Resistant Linear Guide Rail

     -- Hard chrome alloy guide rail paired with PTFE self-lubricating sliders, low friction & strong impact resistance. Pre-filled long-life grease from factory, oil-free air circuit compatible.

  3. Ultra-High Repeat Positioning Accuracy

     -- ±0.01mm repeatability across all 10~25 bores, zero dimensional deviation for precision electronics and hardware picking.

  4. Multi-Angle Universal Mounting

     -- Tapped mounting holes on bottom, two sides and top of body; jaws support side tap, through-hole, flat & narrow styles, mountable horizontally, vertically or inverted.

  5. Three Safe Spring Reset Modes

     -- Double acting D: Stable consistent clamping force for 24h continuous mass production

     -- Single acting S NO: Auto release on power cut, protects parts from crushing at hot press / stamping stations

     -- Single acting C NC: Permanent clamping without air supply, eliminates workpiece falling risk for overhead robot EOAT

  6. Integrated Magnetic Position Detection

     -- Built-in magnetic ring inside cylinder body; M9BW switch transmits digital signal to PLC to judge workpiece presence and jaw status for automated interlock logic.

  7. Diversified Integrated Port Layout

     -- Standard side port, end side port, axial pre-assembled push-in fitting options simplify tubing routing without extra adapters for robot end effector.

Unified Universal Technical Specification Table

Theoretical Clamping Force @0.5MPa (Unit: N)

Step-by-Step Selection Guide

  1. Stroke Selection

     -- Small thin parts, narrow opening, demand high speed & frequency → MHZ2 standard stroke

     -- Large size workpieces, deep cavity mold demolding, wide opening required → MHZL2 long stroke

  2. Action Mode Selection

     -- 24h continuous production, maximize clamping force → D double acting

     -- Hot press / stamping station, prevent workpiece crushing after power loss → S single acting NO

     -- Robot overhead loading/unloading, avoid part dropping on power failure → C single acting NC

  3. Jaw Style Selection

     -- Compact mini fixture with limited space → N narrow jaw

     -- Thin sheets, PCB, narrow gap handling → 3 flat thin jaw

     -- Need to mount extended custom fixtures → 1 side tapped jaw / 2 through-hole jaw

  4. Body Port Layout Selection

     -- Fixed ordinary workstation, standard tubing routing → blank standard side port body

     -- Robot EOAT, streamline tubing layout → W/K/M axial pre-installed push-in port body

     -- Narrow cabinet side tubing space → E end side port body

  5. Position Signal Detection Selection

     -- Fully automatic production line, PLC needs workpiece & jaw status feedback → Equip M9BW magnetic switches (2pcs default)

     -- Simple manual fixture without automatic signal logic → Basic model without magnetic switch

Typical Industry Application Scenarios

  1. MHZ2 Standard Stroke Application

     -- 3C Electronics: High-speed sorting & picking of PCB, chips, connectors, small plastic parts

     -- Precision Hardware: High-frequency loading/unloading of micro shafts, screws, stamped miniature components

     -- Packaging Machinery: Positioning & clamping of bottle caps, small cartons and labels

     -- Optical Inspection Equipment: Mini part positioning fixture for visual detection stations

  2. MHZL2 Long Stroke Application

     -- Large plastic parts, thick plates and multi-layer stacked material gripping

     -- Deep cavity mold part ejection, auxiliary injection molding large workpiece demolding

     -- Cartons, rigid plastic boxes and oversize workpiece transfer

     -- Robot end effector for mixed-size multi-spec material handling

Standard Matched Pneumatic Circuit Solutions

  1. Circuit 1: Double Acting Gripper for Mass Production Lines

     -- AFC air service unit → 4V210 5/2 solenoid valve → PU6 tubing → MHZ2/MHZL2 gripper (M9BW switches wired to PLC digital input)

  2. Circuit 2: Power-Off Hold Safety Circuit for Overhead Robots

     -- AR pressure regulator → 3V 3/2 solenoid valve → MHZ2-XXC single acting NC long stroke gripper

  3. Circuit 3: Mini Manual Simple Fixture Circuit

     -- AC1500 mini air service unit → 3F foot valve → PU4 thin tubing → MHZ2-10D miniature standard gripper

Operation & Maintenance Precautions

     -- Install AF series 5μm precision air filter upstream of the gripper; dust entering guide rail causes jamming and drastically shortens service life.

     -- Align workpiece gravity center with jaw central axis strictly; eccentric unilateral heavy load leads to uneven rail abrasion.

     -- Maintain stable 0.4~0.5MPa air pressure for high-cycle operation; avoid long-term continuous running under full 0.7MPa pressure.

     -- Reserve buffer clearance for magnetic switches to prevent probe damage from high-speed jaw impact.

     -- Do not use in environments with strong acid, alkali or high-concentration organic solvent for long periods; sealing components will corrode and fail prematurely.

One Sentence Summary

     SOLH MHZ2 standard high-frequency and MHZL2 long-stroke parallel pneumatic grippers adopt dual-piston linear guide structure with ±0.01mm precision, D/S/C three action modes and multiple interchangeable jaw & port options, equipped with M9BW magnetic position switches, widely used for 3C, hardware, packaging robot EOAT automatic workpiece clamping, picking and transfer.