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Last Updated: 9/22/2005
© 1996~2005
Gromax Enterprises Corp.
All Right Reserved.

• PRICES, SPECIFICATIONS, AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE.


Grinder/Drill Sharpener

Grinding Wheel

Grinding Accessories

Suburban Tool

 

GROMAX>Grinder>Cutter & Tool Grinder/Drill Sharpener
 

| surface grinder | cylindrical grinder | rotary type surface grinder |
| centerless grinder | cutter & tool grinder/drill sharpener | pin cut-off machine |

Cutter & Tool Grinder/Drill Sharpener

G40 GROMAX Universal Cutter & Tool Grinder [Optional Equipments ] [Parts List ]
MN2 GROMAX Cutter & Tool Grinder (Monaset) [Optional Equipments]
UDG-60/UDG-100 GROMAX Universal Drill Grinder
GT-610 GROMAX Universal Tool & Cutter Grinder
PDS32/PDS32M GROMAX Precision Drill Sharpener
GTU/GTU2 GROMAX Universal Cutter Grinder [Optional Equipments]
GU2 GROMAX Universal Cutter Grinder [Optional Equipments]

Accessories
DM-80 Series Cartridge Spindle for Cutter & Tool Grinder
 

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GROMAX Universal Cutter & Tool Grinder  
 

Standard Equipment and Tool Cabinet:

With the standard equipment alone, G40 is capable of grinding the following cutters: 

  • Plain milling cutters

  • End mills

  • Shell end mills

  • Groove milling cutters

  • Key way milling cutters

  • Angular milling cutter

  • Face mills (max. 8" dia.) (200 mm)

  • Circular saws (max. 48" dia.) (1200 mm)

  • Taps and Reamers.

G40

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Specifications:
Swing over table  10"
Distance between centers 271/2"
Distance between workhead & tail stoc 223/4"
Workhead spindle taper one end -- other end  ASA No. 50 -- MT No. 5
Table surface  55/16 x 37"
Longitudinal movement of table 16"
Cross movement of saddle  10"
Table swivel  60
Graduation on end of table for taper 10
Vertical movement of wheel head  10"
Wheel head tilts  15
Wheel head swivel 360
From wheel head spindle center to top of table 2 to 12"
From wheel head spindle center to T-slot center line 61/2" to 161/2"
Grinding wheel spindle speed  2600, 3700, 6200 RPM
Grinding wheel spindle drive motor 1 HP
Required floor space 61 x 661/2"
Net weight of machine 2200 Lbs.
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Optional Equipments:
G40.1 Click for Price/Shop Online
Cylindrical Grinding Attachment


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  • Swing: 10"
  • Main spindle speed: 310/370rpm
  • Motor: 1/4HP
This attachment is most suitable for straight or taper cylindrical grinding and for face grinding of various tools.
G40.2 Click for Price/Shop Online
Internal Grinding Attachment


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  • Internal spindle: 35,000 or 20,000rpm
  • Length of hole up to 19/16" or 3"
  • Range of bore to be ground: 5/163/4" or 1/22"
This is generally used with the Cylindrical Grinding Attachment. This can be used for grinding internal tapers.
G40.3 Click for Price/Shop Online
Spring Collet Chuck


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  • Size of collets: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 1"
This chuck can be mounted directly in the taper hole of the workhead ASA No.50. This is an indispensable attachment for small cutter grinding. Spring Collet Chuck for larger size cutters or adaptor for 5C collets is also available.
G40.4 Click for Price/Shop Online
No.1 Radius Grinding Attachment


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  • Radius: 0-2" (in case that max. dia. of cutter is 4")
  • Taper hole: M.T. No.5 or B & S No.12 (specify by order)
Convenient for grinding of ball end mills and styli. It consists of two slide bases, each with micrometer adjustment and a workhead.
G40.5 Click for Price/Shop Online
No.2 Radius Grinding Attachment


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  • Radius: 0-1" Max. dia. of cutter: 113/4"
An accurate radius on the corner of teeth can be ground.  Suitable for corner radius grinding of face mills and shell end mills. The position for grinding start is set by the micrometer to eliminate grinding error.
G40.6 Click for Price/Shop Online
Dust Collector


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  • Motor: 1HP
As a health measure, dust collector should be connected to all machine.  This accessory contributes toward operator safety and health by collecting dust particles flying off the grinding wheel during grinding. It is compact and consumes a minimum of floor space.
G40.7.24 Click for Price/Shop Online
Workhead Indexing Attachment


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  • Includes one 24-notched index plate
  • Extra index plates: specify number of notches desired.
Accurate indexing can be made quickly and easily by mounting the Indexing Attachment onto the standard workhead. This eliminates the need for a tooth rest which is normally required for grinding cutters.
G40.8 Click for Price/Shop Online
Lathe & Planer Tool Grinding Attachment


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  • Capacity: 3/8"-11/2"
Convenient for grinding rake face and relief angles. The large work support provides an outstanding grinding capacity. This attachment is ideally suited to grinding cutters for lathes and planers.
G40.9 Click for Price/Shop Online
Drill Pointing Attachment


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  • Dia. of drill: 1/8"-1"
Convenient for precision grinding of drill tip relief angles. It can handle drills of 1/8" to 1".
G40.10 Click for Price/Shop Online
Helical Grinding Attachment


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  • Taper hole: M.T. No. 4
  • Lead: 0- (steepless)
  • Spindle turns twice at max.
  • Index: 24 (standard)
  • Grinding dia.: max. 5"
  • Grinding length: max. 121/2" (in case that helical angle is 0)
  • Module (Hob): max. 8
  • Helix (Hob): max. 8
This attachment is suitable for grinding the relief and rake angle of spiral cutters.
G40.11Click for Price/Shop Online
Extended Grinding Wheel Spindle


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  • 3" extension
Convenient when the extended spindle application is required. Spindle is also cartridge type and interchangeable with standard spindle.
G40.12 Click for Price/Shop Online
Raiser-Block


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  • Height: 2"
This attachment is used when the additional height of the workhead or workpiece is necessary for grinding.
G40.13 Click for Price/Shop Online
Face Mill Grinding Attachment


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  • Max. dia. of cutter: 18"
This attachment comprises a base, swiveling horizontally with respect to table, and a workhead swiveling at a 15 angle. This construction simplifies greatly the setting of elevation and depression angle. Rugged design gives the J-40 the capacity for grinding large size cutters and tools.
G40.14 Click for Price/Shop Online
Surface Grinding Attachment


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  • Width of vise: 4"
  • Depth of vise: 1"
  • Opening: 23/4"
This is a so called "Universal Vise." It consists of a swivel vise and independent support provided between the vise and base. The intermediate support permits the vise to swivel 360 horizontally and vertically.
G40.15 Click for Price/Shop Online
Wet Grinding Attachment


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  • Coolant pump motor: 1/8HP
This is so called "Coolant Supply System." It is conveniently used for cylindrical, internal, surface and various cutters grinding works when necessary.
G40.16 Click for Price/Shop Online
Dust Collector & Wet Grinding Attachment
G40.17 Click for Price/Shop Online
Hydraulic Table Feed Attachment
G40.18 Click for Price/Shop Online
Long Reamer Grinding Attachment
G40.19 Click for Price/Shop Online
Small End Mill Grinding Attachment
G40.20 Click for Price/Shop Online
Gear Cutter Sharpening Attachment
G40.21 Click for Price/Shop Online
C Collet Closer
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Parts List:
 

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GROMAX Cutter & Tool Grinder (Monaset)  
 

MN2

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Standard Accessories:
  • Wheelhead tooth rest assembly with extension bar
  • Grinding wheel guards with extension bar
  • Front stock support
  • Grinding wheel flanges (set of 5).
    (4 standard and one extension flange)
  • Diamond holder bracket
  • Wrench for workhead
  • Tooth rest centering gauge
  • Adjustable tailstock support unit
  • Spanner for grinding wheel
  • Leveling blocks
  • Standard arbor
  • Screw drive
  • Set of wrenches
  • Double-end spanner
  • Set of 4 Index Plates for spiral lead mechanism 0,8,10 & 12 divisions
  • Tool box
  • Oil bottle
Optional Accessories:
  • Straight cylindrical collets (Metric or Inch size)
    Metric: 3,5,6,8,10,12,16,20,25 & 32 m/m
    Inch:1/8,3/16,1/4,5/16,3/8,7/16,1/2,5/8,3/4,7/8,1,11/8 & 11/4"
    Taper collets (set of 3): No 2,3,4 Morse taper
Features:

With the combination of swiveling turntable and moveable offset slide provide versatile capability to be quickly set up. The grinder can accurately generate convex and concave radii of various sizes.

Specifications:
CAPACITY Workhead  
Swing over main slide, max dia. 12"
Collet work dia., max. 1.25"
Collet work dia., min. 0.12"
Lead generated by spiral lead mechanism, min. 1.81"
Length between spindle nose and tail center, max. 6"
Wheelhead:  
Grinding wheel dia, max. 4"
RANGE Workhead:  
Main slide travel 5.75"
Offset slide travel, total 5.25"
  -front of center 3"
  -rear of center 2.25"
Workhead angular adjustment:  
Horizontal plane (turntable base) 235
Vertical plane, above center 40
Vertical plane, below center 40
Wheelhead:  
Longitudinal slide travel 6"
Vertical slide travel, total 9.50"
  -above center 4.50"
  -below center 5"
Cross slide travel, total 7.50"
  -front of center 3"
  -rear of center 4.50"
SPINDLE SPEEDS (0%, -8% variation allowable)  
Workhead, one speed 436 rpm
Workhead, three speeds 4000, 5729 and 8000 rpm
(motor speed @ 3600 rpm)  
Internal grinding attachment (extra cost)
Three speeds, approx.
16410, 23510 and 32820 rpm
Motors, Electric  
Workhead drive, AC includes reverse 1/4 hp.
Workhead drive, AC 1/2 hp.
Floor Space and Weight  
Area of base only 25"X26"
Area required for machine
(including swivel and overtravel movements)
60"X67"
Height from floor to center of workhead spindle 47.42"
Height, overall with wheelhead raised 62.12"
Net weight (including motors and controls) 1525 lbs.
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Optional Equipments:
MN2.1 Click for Price
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Large cutter radius grinding attachment
MN2.2 Click for Price
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Four-inch universal six-jaw chuck for workhead
MN2.3 Click for Price
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Additional index plates for spiral lead indexing unit
MN2.4 Click for Price
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Additional diamond truing tool with diamond nib
MN2.5 Click for Price
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Grinding wheel flange for mounting grinding wheel with 1/2" hole
MN2.6 Click for Price
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Spring-loaded index pawl for workhead index plates
MN2.7 Click for Price/Shop Online


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Additional straight cylindrical collets

For more details about the optional equipments,
please contact us.

 

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GROMAX Universal Drill Grinder  
 
Double Cams: It can grind the drills from one flute to six flutes.

UDG-60

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Extra Grinding Wheel
UDG60.GW Click

UDG-100

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Extra Grinding Wheel
UDG100.GW Click

Features:

  • Rugged construction and precision components assure accuracy.
  • The six jaw chuck accurately centers the drill which ensures that the cutting lips are ground equally in both length and angle to produce drill, NC drill, step drill, taps, endmill, counter sink, round bars, etc.
  • Grinding wheel and "dish" grinding wheel are both on spindle to save time.
  • Grinding capacity:
    UDG-60: 0.07"~2.36" (straight & taper shank)
    UDG-100: 0.20"~3.94" (straight & taper shank)
  • With 6" precision jaw chuck, it can grind the table of the drills and the paring of the drills abdomen.
  • The main spindle has 2 grinding wheels. It can grind the blade and the center of the drills at he same time. This can save time without changing the grinding wheel.
  • The motor can travel 6.30" up and down. This can increase the control of the machining.
Specifications:

Model

UDG-60 UDG-100
Drill size 0.08~23/8" 0.2~315/16"
Table travel (XxY) 7.09"x6.3" 7.09"x6.3"
Vertical adjustment of wheel head 6.3" 6.3"
Point angles 40~180 40~180
Clearance angle 0~18 0~18
Motor 1 HP 220V/3 Phases 1 HP 220V/3 Phases
Grinding wheels (O.D.xWxI.D.) 7"x3/4"x11/4"
UDG60.GW Click
7"x11/4"x11/4"
UDG100.GW Click
Speed of rotation 3600 rpm 3600 rpm
Net weight 616 Lbs. 750 Lbs.
Packing dimensions 37.4"x39.4"x58.3" 37.4"x39.4"x58.3"
Price Click for Price/Shop Online Click for Price/Shop Online
 
Standard Accessories:
  • One 6-jaw self-centering chuck
  • One grinding wheel (recessed one side)
  • One "dish" grinding wheel for point thinning
  • Grinding wheel flange and balancing weights
  • No 1,2,3,4 Morse taper sleeves
  • A.C. motor for grinding wheels
  • Tools for general use
  • Service/ instruction manual
  • Radial relief attachment. Relieves radius of pilot to produce lands. Also for sharpening end mills
  • Work light (12 Volts)
  • Wheel balancer & arbor
  • Extra grinding wheel flange for cup wheel
  • Cup grinding wheel
  • Cam for left hand drills
  • Cam for spiral point drills
  • Cam for sheet metal point drills
  • Cam for 1 flute grinding
  • Cam for 3 flute grinding
  • Cam No.4 for point angle (40~180)
  • Cam for 5 flute grinding
  • Cam for 6 flute grinding
  • Cam No.6 for step drill
  • Cam No.8 for 4 flute taps or reamers

 

 

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GROMAX Universal Tool & Cutter Grinder  
 

GT-610

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Standard Accessories Free!
  • Air bearing fixture
  • Cup wheel
  • Open end wrench
  • Forward/ reverse switch
  • Offset wrench
  • Hex wrenches (2)

Features:

  • Smooth movement due to steel balls on the longitudinal travel bed
  • Large, easy to read dials
  • Air bearing fixture works on steady rest
  • Air quill make of heat-treated alloys, chromium plating, ground and tapped
  • High grade castings and aluminum alloys throughout
  • Forward and reverse switch
  • Use worm and worm gear to adjust angle and turn around the wheel head
  • Proper distance of longitudinal travel is controlled by limit switch
  • Backlash adjustment exist in the leader screw and nut of cross feed
Specifications:
Distance between centers 10"
Swing over table 8"
Longitudinal travel of table 10"
Cross travel of saddle 65/16"
Work table 51/4" x 181/2"
Vertical adjustment of wheel head 71/2"
Swivel adjustment of table 0
Swivel adjustment of column  360
Vertical tilting range of wheel head 360
Diameter of wheel 11/4" I.D.
Saucer wheel 6"
Flaring wheel 5"
Speed of wheel 50Hz, 2850rpm/60Hz, 3450rpm
Motor  1/3 Hp,1,110/220V
Weight 275 Lbs.
 

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GROMAX Precision Drill Sharpener  
 


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PDS32 Call for Pricing
PDS32M Call for Pricing
cccccccccc(motorized)

 

With the innovative synchronized sharpening performance, the operator can sharpen the outside cutting angle, inside cutting angle and center point simultaneously.
Specifications:
Point angle 40°~180°
Grinding range 0.06"~1.26" (MT2 or MT3)
Gringing wheel speed 4200 rpm
Motor 1/3HP
Weight 121 Lbs.
Packing dimensions 29.5"x29.5"x33.5"
Standard Accessories
  • 2-flute cam for sharpening standard tools
  • Self-centering 6-jaw chuck
  • Plain grinding wheel
  • Halogen light
  • Morse taper sleeve MT2, MT3
  • General tools
Typical Sharpening Application:
Ideal for sharpening general drill bits, step drill bits, taps, chamfering tools, end mills, ect.
Optional Accessories 
  • PDS32.1: Enclosed floor stand Call for Pricing
  • PDS32.2: #1 cam for single flute chamfering tool Call for Pricing
  • PDS32.3: #3 cam for 3-flute chamfering tool & tap Call for Pricing
  • PDS32.4: #4 cam for 4-flute chamfering tool & tap Call for Pricing
  • PDS32.5: CBN grinding wheel Call for Pricing
  • PDS32.6: Diamond grinding wheel Call for Pricing
Enclosed floor stand
(optional)
 

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GROMAX Universal Cutter Grinder  
 
  • This unit is designed for single-lip cutter
  • It can also be used to grind engraving cutter to various shape and angle.
GTU

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GTU2 (2-way)

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Specifications:
Cup Wheel Diameter/Thickness/Bore 4"x2"x3/4"
Spindle Speed 5200 RPM
Collet Capacity 1/8"~ 5/8"
Longitudinal Travel Of Index Head Carrier 5"~1/2"
Fine Longitudinal Adjustment Travel Of Index Head Carrier 3/4"
Taper Angle 0~180 
Negative Taper Angle 0~52 
Relief Angle  0~44 
Motor 1/4 HP / 3400 RPM
Voltage 110V / Single Phase
Weight 125 Lbs
Overall Dimensions 18"x14"x14"
Standard Accessories:
  • Collets 1/8", 3/16", 1/4", 5/16", 3/8", 1/2", 5/8"
  • Cup wheel 4" x 2" x 3/4"
  • Extra jointless belt
  • Tools
  • User's Operation Guide
Optional Accessories:

 

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GROMAX Universal Cutter Grinder  
 

Click for Samples of Cutter Profiles.
GU2

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Standard Accessories:
  • Diamond Wheel Dresser
  • Collets f4/6/8/10/12mm (or inch)
  • Wrench & Spanner Set
  • Grinding Wheel
  • Wheel Mount
  • Aligning Finger
  • Lock Pin
  • Drive Belt
Specifications:
Max. Collet Capacity f5/8"
Max. Grinding Dia. f1"
Taper Angle 0~180
Relief Angle 0~45
Negative Angle 0~25
Grinding Spindle 6000rpm
Cup Grinding Wheel 4"x2"x20mm
Motor 1/3HP 110V /60Hz
Net/Gross Weight 99/132 Lbs.
Machine Dimensions 17.7"x16"x14"
Packing Dimensions 21.6"x17.7"x18"
 
Optional Accessories:

GU2.1
Lathe Tool Attachment

GU2.2
End Mill Attachment

GU2.3
Twist Drill Attachment


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GROMAX Cartridge Spindle DM-80 Series for Cutter & Tool Grinder  
 

 

Specifications:
Model
Max. Speed
(rpm)
Motor
(HP)
Pulley Type
Outer Diameter of Pulley (mm)
Runout Accuracy in Taper (µm)
Max. Temperature Rise (°C)
Price
DM-80-05
8000
1/2
5M
ø54/ø71/ø82
2
+12
Call
DM-80-10
8000
1
5M
ø54/ø71/ø82
2
+12
Call
DM-80-20
8000
2
5M
ø54/ø71/ø82
2
+12
Call
 

| surface grinder | cylindrical grinder | rotary type surface grinder |
| centerless grinder | cutter & tool grinder/drill sharpener | pin cut-off machine |

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