Fein GRIT Belt Grinder User manual

Belt grinding for
professional users in metal working
and fabrication trades and industries
METAL
GRIT GX / GI
 Belt Grinders
 Grinding Modules
 Deburring Machines
 Accessories

GX
02
Solving problems and developing solutions for metal working professionals – a core component of
FEIN philosophies. For over 25 years GRIT has set the standard for quality belt grinding machinery.
By taking over and investing in the GRIT brand FEIN has set the standards even higher. The
comprehensive knowledge of these two leading manufacturers adds prot to your bottom line.
GRIT by FEIN, not a one size ts all product. GRIT by FEIN belt grinders offer the ideal solution
for each requirement – with our unique and exclusive modular system; powerful, basic belt
grinders and mounted modules are designed and engineered for specic tasks within the entire
application range – specialized machines for all applications in metal working trades and industries.
GRIT – The brand for belt grinding from FEIN
Constructed for operation and use in small; job, prototype and
fabrication shops. The GRIT GX program stands out due to its
high efciency. Whether for rough grinding or surface polishing
with GRIT GX machines you count on the quality you demand.
GRIT GX machines can also be quickly converted to a variety
of tasks, are reliable in operation and constructed to be tough
and durable. The complete GRIT GX program can be found
on pages 4 to 15.
All technical data provided by this brochure refer to the models in
220 V / 440 V, 3 ~, 60 Hz (US); 575 V, 3 ~, 60 Hz (CAN). There may
be a few deviations of the given voltage and frequency values for the
respective country-specic versions.
 Ideal for use in small workshops and for limited production
runs
 Covers all standard grinding tasks: Belt, radius and cylindrical
grinding
 Easy to assemble, quickly installed and quickly converted
 Great work safety and machine reliability
 Quality work results due to professional equipment and
accessories
GX–foruseintheworkshop Yourbenets:

GI
03
Industrial environments place extremely high demands on belt
grinders; from high production, factory settings to harsh applica-
tions. The GRIT GI program is designed specically for intense,
industrial duty. All grinders are equipped with extremely powerful
motors; even continuous operation times and high loads are no
problem for the solidly built GI machines. Simple to operate the
entire GI line increases work efciency as well as machine reliabili-
ty. The complete GRIT GI program can be found on pages 16 to 33.
All technical data provided by this brochure refer to the models
in 220 V / 440 V, 3 ~, 60 Hz (US); 575 V, 3 ~, 60 Hz (CAN). There
may be a few deviations of the given voltage and frequency values
for the respective country-specic versions.
 For industrial processing of steel, stainless steel and
non-ferrous metals
 Suitable for all common materials and grinding applications
 Construction and parts are specifically adapted to heavy
duty jobs
 High abrasive performance leads to economical and
professional work results
 Great work reliability and simple operation
 Special solutions for special applications available
GI–foruseinindustry Yourbenets:

1.
2.
3.
4. 
5.
04
Tough, exible, cost-effective
In short: GRIT GX
If you work on steel or stainless steel every day, then GRIT GX belt grinders are
the right choice. Twenty-ve years of experience and know-how have evolved into
GRIT – evident by the highly exible design and machine reliability; the GX Grinders
have the ability to easily adapt to various materials and applications – from rough
grinding to mirror polishing.
The GRIT GX functions according to the building-block principle. The belt grinder
is the foundation of the system. By simply adding modules, the spectrum of perfor-
mance is highly enhanced. i.e. having the ability to notch pipe and tubing. The modular
system is highly cost effective, saving both time and money. Grind efciently and
effectively with the GRIT GX system.
Powerful belt sander in single-
or two-speed models – the
heart of the modular GX pro-
gram. Highly productive and
economical as a stand alone
grinding center.
Add-on module for quick and
efcient radius grinding or
notching. Radius grinding
applications include: pipe,
square/rectangular tubing, bar
stock and proles.
Add-on module for nishing and
polishing applications on round,
ferrous and non-ferrous stock –
from rough grinding to mirror
polish.
Independent of the GX program,
the GXE machine utilizes durable
steel brushes for deburring steel
and stainless steel workpieces.
Available with optional pedestal
base and steel or stainless steel
brushes.
Accessories for the GX belt
grinders range from superior
performing grinding belts to
a cooling unit module.
 BeltGrinderGX75/GX752H
 RadiusGrindingModuleGXR
 CylindricalGrindingModuleGXC
 DeburringMachineGXE
 Accessories

GX 75 / GX 75 2H GXR
GXWGXCGX 75 / GX 75 2H
05
The GRIT GX program is modularly designed. By attaching the appropriate modules you can quickly transform a basic belt grinder into
a cylindrical or radius grinding machine. The easy and exible GX program saves extensive time, money and space.
GRIT GX:
One system, multiple applications
Grinding, deburring, sanding, cylindrical nishing and notching of
steel and stainless steel require a broad range of expensive, single
purpose machinery. The GX system allows you to begin with a basic
machine and expand capabilities as your requirements demand.
Radius grinding machine
Radius grinding module
9 90 01 001 00 0
Belt grinder (basic units)
7 901 01 / 7 901 02
Cooling lubricant
module
7 901 04
Cylindrical
grinding module
7 901 03 Cylindrical grinding machine “Centerless”
Belt grinder (basic units)
7 901 01 / 7 901 02
Thesystemthatgrowswiththerequirements


Bestellnr.: 790101 790102
06
The perfect base:
GX 75* / GX 75 2H* Belt Grinder
The GX 75 or GX 75 2H is the heart of the system. A reliable, powerful
belt grinder for professional applications – based on a foundation of
25 years experience in mechanical engineering and belt grinding: built
solid, easy to assemble, and equipped with everything that eases the
work and the operation.
 GX75* GX752H*
Power 3 kW (4 HP) 1.5 / 2 kW (2/2.5 HP)
Voltage US 220 or 440 V (3~) 220 or 440 V (3~)
Amps US 13.6 or 6.8 6.8 / 9.1 or 3.4 / 4.6
Voltage CAN 575 V (3~) 575 V (3~)
Amps CAN 5.2 2.6 / 3.5
Speed 3,600 rpm 1,800 / 3,600 rpm
Belt size 3" × 79" 3" × 79"
(75 × 2,000 mm) (75 × 2,000 mm)
Connecting cable 6.5 ft 6.5 ft
Weight 145 lbs 145 lbs
Included in delivery:
1 grinding belt 3" × 79", K 36 Z
PartNumber: 790101 790102
GX75*/GX752H*
Technicaldata
 Tough AC motor provides grinding with
constant speed
 Ideal speeds for metal working: GX 75* at
3,600 rpm; GX 75 2H*, dual speed, 1,800 or
3,600 rpm
 One step, self adjusting belt tension
 Comfortable operation through an adjustable
work level, height-adjustable support for flat
grinding, and easy belt adjustment
 Safe and reliable production results from
a stable machine base and solid grinding table
 Integrated dust extractor connection
(3 ⁹⁄₁₆" / 90 mm dia.)
 Detachable grinding particle collector
* US version order #:
GX 75 2V; single speed; 220 V
GX 75; single speed; 440 V
GX 75 2H 2V; two speed; 220 V
GX 75 2H; two speed; 440 V

1.
2.  
07
GX 75 belt grinders feature high power motors providing
outstanding capacities to assure maximum grinding produc-
tion. The GX 75 and GX 75 2H also exhibit minimal vibration
characteristics during operation, due in part to a patented
belt tensioning system. Operator production and comfort
is a standard feature with GRIT GX belt grinders.
Whether grinding, weld seam polishing, chamfering, debur-
ring, or at sanding – with Grit work is: efcient, productive
and especially, cost effective!
Flat grinding is another standard feature with GRIT machines.
A 3" x 16 ⁹⁄₁₆" (75 x 420 mm) height adjustable grinding table
for at work is standard on both GX 75 and GX 75 2H.
 Versatilityforeveryjob
Optimalatgrinding

Bestellnummer 99001001000
08
Everything simply ts together:
GXR radius grinding module
The perfect solution for pipe and tube fabrication. By attaching the
GXR module, the GX 75 2H belt grinder converts to the ideal platform
for precise radius proles on pipe and round or square stock. Standard
features include: a quick clamp system, traverse carriage, indexed
degree table and depth stop. User friendly with professional results;
quickly and effortlessly.
 For precise grinding of profiles and pipes
from ⅝"–3" (16–75 mm) dia.
 For angles
of 30° to 90°
30° / max. 1 ½" (37.5 mm) dia.
45° / max. 2 ¹⁄₁₆" (53.0 mm) dia.
60° / max. 2 ⁹⁄₁₆" (64.5 mm) dia.
90° / max. 3" (75.0 mm) dia.
 User-friendly, with integrated depth stop
and vise with quick–clamping for round and
square pipes as well as solid material
 Contact rolls are available in all common
sizes
 Vise with stainless steel clamping jaws
 Low speed (1,800 rpm) optimal for
processing stainless steel. Less burrs and
heat tarnish.
 Moves easily on 4 casters
 Can also be combined with the
GI program (GI 75 / GI 75 2H).
Requires adapter # 6 99 02 186 00 0
Pipe diameter ⅝"–3" (16–75 mm) dia.
Prole dimensions/
Square material max. 3" × 3" (75 × 75 mm)
Belt size 3" × 88 ⁹⁄₁₆" (75 × 2,250 mm)
Weight 119 lbs
PartNumber 99001001000
Included in delivery: 1 contact roll 1 ¹¹⁄₁₆" (42.4 mm) dia.;
1 contact roll 1 ⅞" (48.3 mm) dia.;
1 grinding belt 3" × 88 ⁹⁄₁₆", K 36 Z, 1 water container
Technicaldata
GXR
30°
45°
60° 90°

1.
2.
3.
GXR
9 90 01 001 00 0
GX 75 / GX 75 2H
09
It makes no difference whether pipes, proles, or solid
material is being ground – the GXR radius grinding module
is ideally suited. Precise, efcient and economical processing
is achieved through a quickly indexed angle gauge and unique,
quick clamp vise* for round and square stock – comes
standard with stainless steel jaws.
(* patent pending)
Pipes sized ⅝"– 3" (16–75 mm) dia. and an attack angle
of 30° to 90° can be ground to a perfect t with the radius
grinding module. The extensive GRIT contact roller selection
covers all standard pipe and tube diameters.
The retrotable length stop for the GXR radius grinding
module ensures consistent, precise results in repetitive
production. The length stop is adjustable through 39 ⅜" (1 m)
and can be added at any time.
Belt grinder
(basic units) Radius grinding module Radius grinding machine
Perfecttatanyangle
Customtcontactrollers
 Withlengthstopforproductioninseries

Bestellnummer 790104
10
Quality and efcient nishing:
GXC cylindrical grinding module
The GXC cylindrical grinding module allows for perfect surfaces in
the simplest manner. The conversion to a “Centerless” cylindrical
grinding machine is done in just a few steps. Efciency and exibility
are apparent in the design and construction.
 For grinding of pipes and shafts from
⅜"–4" (10–100 mm) dia.
 High process speed for highest surface
quality.
 Suitable for wet-grinding when used with
the GXW cooling lubricant module
 Moves easily on 4 casters
 Can also be combined with the GI program
(GI 75 / GI 75 2H).
Requires adapter # 6 99 02 187 00 0
Voltage US 220 / 440 V (3~)
Voltage CAN 575 V (3~)
Weight 19 lbs
PartNumber 790104
Included in delivery:
¼ gal (1 liter) cooling lubricant emulsion (1:30)
GXC

Bestellnummer 790103
Pipes ⅜"–4" (10–100 mm) dia.
Belt size 3" × 79" (75 × 2,000 mm)
Voltage US 220 / 440 V (3~)
Voltage CAN 575 V (3~)
Weight 106 lbs
PartNumber 790103
Included in delivery: 2 guide rail, nylon; 1 guide rail, brass,
1 connecting cable with CEE plug 16 A
Technicaldata
GXWCoolinglubricantmodule