Models 380 & 382S
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wpe11830.gif (82454 bytes) Model 380S semi-automatic version shown.

The Model 380 is a heavy-duty machine designed for grinding even numbered fluted drills, taps, reamers, countersinks and endmills up into the larger sizes - 3/16" to 3-1/8" (5 - 80 mm).

It is available in manual, semi-automatic and automatic infeed versions.

wpe54209.gif (101041 bytes)

            Model 382S semi-automatic version shown.

The Model 382S offers a unique combination of versatility and capacity.  It has a dual-cam workhead for grinding both  odd (1, 3, 5 & 7) and even (2, 4, 6,8 & 10) numbered flutes and the large capacity of the Model 380.  The Model 380 workhead has only even-fluted capability.

The Model 382S is available in semi-automatic and automatic infeed versions.

Selected Optional Accessories

Semi-Automatic Version (Standard for Model 382S)

The power-driven workhead of the semi-automatic version offers a quiet, smooth rotation of the workhead.  Manual effort is reduced for heavier grinding and spin grinding operations.  Sparkout is allowed to occur by using a minimum of manual infeed along with a reduction in workhead rotation.   The speed is controlled by a conveniently located valve; the adjacent four-way valve allows grinding in either direction.  A hand knob on the workhead is used for indexing and setup.

Automatic Infeed System

wpe81744.gif (146708 bytes)The semi-automatic versions can also be equipped with the automatic infeed system (except the Model 132C).  This can increase productivity by allowing the operator to do other nearby tasks while the drill  is being ground.  The system allows manual or semi-automatic grinding of all tool grinding, and use of the automatic infeed for standard drill points, countersinks and reamers.  The grinding rate is adjustable and the counter can be preset for 1-99 cycles.  An electroplated CBN wheel (standard) is used with the automatic infeed and requires no dressing.  Larger, three-phase motors are standard and an ammeter is provided to monitor the grinding load.

Overhead Wheel Dresser            wpe61907.gif (111161 bytes)

Timesaving option allows truing of the grinding wheel O.D. without changing the setup.

 

Features:

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Sealed linear bearing with hardened guide shafts

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Detented downfeed in .001" increments

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Hardened downfeed screw with wiper seal

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High-quality diamond included for truing standard and ceramic wheels

Air bearing Fixture                wpe58979.gif (215759 bytes)

Allows precision sharpening of endmills, reamers, shell mills and other cutters.  The spindle is supported with a thin film of air providing nearly frictionless motion, resulting in a smooth, even grind.  The fixture quickly mounts on the Model 132C, 250A, 252, 380 or 382S grinders, or is available with a universal base to fit most tool and cutter or surface grinders.

Features:

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Hard chrome plated and ground spindle with a 10" stroke.  Tools are held in 5-C or 5-CG collets or extension bushings for up to 2" (50 mm) shanks.

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Flute finger has dovetail crossfeed and micrometer vertical adjustment.

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Direct angle settings for up to 20 degrees for the O.D., 360 degrees for rotation, and 30 degrees for tilt (fore and aft).

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Rocker arm tilts fixture away for easy movement from one flute to the next.

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Grinds the O.D. of any number of flutes and includes 12-position index plate (others available) for end grinding.

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Unique micrometer infeed built into fixture.  Allows fine-feeding of the tool into the wheel.  It is graduated in .001" (or .04 mm) of diameter.

 

Specifications - Models 380 & 382S

Capacity:    3/16" to 3-1/8" (5 to 80mm) diameter straight or taper shank

Drill Point Angles:    40 to 180+ degrees

Motor:    TEFC, 1 Hp, 208-230/460V, 60 hz, three-phase (standard on manual and semi-automatic versions).  TEFC, 1-1/2 Hp, 208-230/460V, 60 hz, three-phase (standard on auto-infeed versions).  50 hz & other voltages are available

Dimensions:    50" (127 cm) wide x 48" (122 cm) deep x 54" (137 cm) high

Weight:    Manual:  720lbs (336kg) net; 890lbs (405kg) crated

                Semi-Automatic:  740 lbs (345kg) net; 910lbs (414kg) crated

                Auto Infeed:  785lbs (357kg) net; 960lbs (436kg) crated

For full 380 specifications, click here: Spec 380.doc or Spec380.pdf

For full 382S specifications, click here: Spec382S.doc or Spec382S.pdf

Sample Tool Grinding 

Send us some sample tools for grinding.  Let us know your application and needs.  We'll grind your tools for you to test.

Demonstration Video Tape

See all the Rush models on our 13-minute video or CD.  Contact your dealer or Rush Machinery for a free copy.

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