Mitsui High-tec

MITSUI HIGH-TEC FULLY AUTO GRINDERS

Description

Model MSG-250HMD / 8 x 19

Model MSG-300HMD / 12 X 24

Model MSG-400HMD / 16 X 32

Not all surface grinder manufacturers can attest to precision the way we do. Our cartridge spindle is second to none and REMOVABLE. The carriage/saddle moving on (2) 45 “Vees” combined with the table moving on Linear Ball Bearings make for the repeatability for which MITSUI is known. NO design compromises here.

Three axis automatic system

Separate hydraulic unit, with saddle mounted control valve for adjusting table movement speed.  AC motor drive with frequency control for the cross feed.  Pendant arm control panel with various adjustments.

Vertical Feed (Up & Down) Construction

The linear motion guide provides precision and high rigidity for accurate grinding. 5 phase stepping motor control for auto down feed and rapid feed

Direct Drive Spindle

5 hp 4P, 220 Volt (Ball Bearing, Dynamically Balanced Spindle Motor). Heavy duty removable cartridge spindle with two sets of double row angular contact, grease packed super precision bearings.

Grinding Wheel

14” x 1-1/4” x 5” capacity

Table (Left & Right) Construction

D-2 hardened steel ways with linear ball bearings mounted on the hand scraped ways of the saddle and table.  These ways are mounted with screws and easily replaceable.

Cross Feed (In & Out) Construction

Saddle moves on two automatically lubricated hand scraped 45 degree angle Vee Ways. Standard 0.001” feed increment

Lubrication

Automatic lubrication for the cross and vertical ways, screws and bushings. Table (Left & Right) utilizes an oil bath system for extended life of the ways and linear ball bearings.

Base Construction

Meehanite cast iron, fully ribbed design for strength and rigidity. The unit includes a “Three Point Leveling System” with base plates and jack bolts.  Machine color – Ivory

Standard Electrical

3 Phase 200/220V, 50/60Hz Motor (460VAC optional).  Machine requires 7 KVA (with accessories will require more)

Mitsui grinders are proudly made and assembled in JAPAN

250HMD 300HMD 400HMD
Table Work Surface 8″ x 19″ 12″ x 24″ 16″ x 32″
Table Movement 10″ x 20″ 13-3/4″ x 29″ 17-1/4″ x 35-1/2″
Max Height 20″ 24-1/2″ 23-1/4″
Table Speed 16-65′ / min 33-72′ / min 16-72′ / min
C/F Speed (Continuous) 5-95″ / min 8-118″ / min
Head – V/F Minimum Increment 0.0001″ 0.0001″ 0.0001″
Head – Automatic Down Feed 0.0001 – 0.001″ / 10 Steps 0.0001 – 0.001″ / 10 Steps 0.0001 – 0.001″ / 10 Steps
Head – V/F Rapid Feed 9-1/2″ / min 7″ / min
Wheel – Size 8″ x 3/4″ x 1-1/4″ 14″ x 1-1/4″ x 5″ 14 x 1-1/4″ x 5″
Wheel – Spindle Speed 2900/3600rpm 1430/1730rpm 1430/1730rpm
Wheel – Spindle Speed w/ Control 500-4000rpm 500-2000rpm 500-2000rpm
Motor – Spindle 1-1/3HP 2P V-3 5HP 4P V-3 5HP 4P V-3
Motor – Cross Feed 1/4HP 4P 1/2HP 4P
Motor- Hydraulic Pump 1HP 4P 1HP 4P 3HP 4P
Motor – Vertical Feed 5 Phase Step Motor 5 Phase Step Motor
Guide/Drive – Long Feed Hydraulic Linear Ball / Steel Ways Linear Ball / Steel Ways
Guide/Drive – Cross Feed Induction Motor LM Guide & Ball Screw LM Guide & Ball Screw
Guide/Drive – Vert Feed Stepping Motor Steel Ways & Standard Screw Steel Ways & Standard Screw
Power – Supply 3 Phase 200/220V 05/60Hz 3 Phase 200/220V 05/60Hz 3 Phase 200/220V 05/60Hz
Power – Fluctuation ~ 10% ~ 10% ~ 10%
Power – Required 7 KVA 10 KVA 10 KVA
Floor Space 94″ x 60″ x 71″ 108″ x 76″ x 79″ 142″ x 90″ x 83″
Gross Weight 2750 lbs 4500 lbs 8380 lbs

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