1984 Mitsui 8" x 18" Hi-Precision Hydraulic Surface Grinder

Model MSG-250H-2AH | S/N 84083C47 | 2-Axis Auto | DRO & Magnetic Chuck

Overview

The Mitsui MSG-250H-2AH is world-renowned for its "silky" table movement and "tenth-splitting" accuracy. This 1984 model features the desirable 2-axis hydraulic automatic system, providing smooth, shockless table reversals and incremental cross-feeds.

Equipped with a 2-Axis Digital Readout for high-precision positioning and a Fine-Pole Magnetic Chuck, this machine is ready for immediate toolroom production. Unlike standard grinders, the Mitsui utilizes a unique linear ball slide system that eliminates "stick-slip," ensuring that even the smallest handwheel adjustments result in precise metal removal.

Technical Specifications

• Year of Manufacture: 1984
• Working Surface of Table: 8" x 19"
• Max Grinding Capacity: 9.5" x 20"
• Distance Table to Spindle Center: 22.5" (High Column Model)
• Longitudinal Travel (Hydraulic): 20"
• Cross Travel (Automatic): 9.5"
• Vertical resolution: 0.0001" (Graduated Handwheel)
• Spindle Motor: 1 HP, 230/460V, 3-Phase
• Spindle Speed: 3,450 RPM
• Machine Weight: Approx. 3,490 lbs

Key Features & Included Accessories

• 2-Axis Digital Readout (DRO): High-resolution display for X and Y axes, allowing the operator to track table and cross-slide positions with extreme precision.
• Fine-Pole Magnetic Chuck: Ideal for holding both large plates and small, delicate workpieces securely without distortion. Includes [Insert: Manual or Electromagnetic] controller.
• Linear Ball Slide Ways: Mitsui’s signature table design provides nearly frictionless movement, allowing for effortless manual operation and superior surface finishes.
• 2-Axis Automatic Feed: Fully adjustable hydraulic longitudinal travel and automatic cross-feed increments for consistent, unattended grinding passes.
• High Column Clearance: The "High-Tec" design offers 22.5" of vertical space, accommodating tall workpieces and indexing heads that standard 618/818 grinders cannot clear.