FG Cleanroom Preset Torque Screwdrivers

SPECIFICATIONS Mountz FG Preset Precision Cleanroom Screwdriver models The cleanroom screwdriver models feature a polyurea grease.

TORQUE RANGES

FG CLEANROOM MODELS

FG CLEANROOM HVG MODELS

MODEL

ITEM NO.

DRIVE SIZE

WEIGHT

LENGTH

AMERICAN

S.I.

STANDARD POLYUREA GREASE

ULTRA-HIGH VACUUM GREASE

Color

FG-25z CR

076450 3– 25 ozf.in 2– 17.7 cN.m 1/4" F/Hex

2.8 oz.

4.1″

Blue Green

Translucent White

Temperature

FG-50z CR

076451

20 – 50 ozf.in 14.1 – 35.3 cN.m 1/4" F/Hex

2.8 oz.

4.1″

-40°C to +276°C

-20°C to +325°C

Application

FG-8i CR

076452

1.6 – 8 lbf.in 18 – 90 cN.m 1/4" F/Hex

7.3 oz.

5.2″

Useful in applications where the external elements in the field cannot always be controlled, such as a high-temperature spike or extreme weather conditions.

For highly sensitive applications in ultra-high vacuum.

FG-20i CR

076453

2 – 20 lbf.in 22 – 226 cN.m 1/4" F/Hex

7.3 oz.

5.2″

FG-40i CR

076454 4 – 40 lbf.in 0.4 – 4.5 N.m 1/4" F/Hex

11.5 oz.

6.3″

• Waterproof • Long operating life • Contains no metals • Inhibits rust and oxidation

• Ultra-low outgassing for optimal vacuum performance • Consistent lubrication across extreme temperatures • Superior chemical resistance in diverse environments • Anti-wear properties for extended bearing life

FG-125i CR

076455

25 – 125 lbf.in 2.8 – 14.1 N.m 1/4" F/Hex

11.5 oz.

6.3″

Features

Mountz FG Cleanroom HVG (High-Vacuum Grease) Screwdriver models For highly sensitive applications in ultra-high vacuum and optics, Mountz offers HVG cleanroom screwdrivers with a specialized ultra-high vacuum and exceptionally low vapor pressure to prevent further airborne contamination and sustain lubrication performance. Our ultra-high vacuum grease is crafted using advanced polytetrafluoroethylene. It’s characterized by ultra-low outgassing, vast temperature suitability, and superb lubrication. It is an ideal choice for diverse chemical interactions because it is chemically inert, non-toxic, and nonflammable.

• Added resistance to extreme pressure • Performs well in harsh environments • Improved performance over time For FG-8i CR, FG-20i CR, FG-40i CR, and FG-125i CR models: 20,000 cycles before re-calibration For FG-25z CR, and FG-50z CR models: 5,000 cycles before re-calibration For FG-8i CR, FG-20i CR, FG-40i CR, and FG-125i CR models: 100,000 cycles

Calibration Intervals

For all HVG models: 5,000 cycles before re-calibration

Routine Maintenance Intervals

For all HVG models: 50,000 cycles

TORQUE RANGES

MODEL

ITEM NO.

DRIVE SIZE

WEIGHT

LENGTH

AMERICAN

S.I.

For FG-25z CR, and FG-50z CR models: 50,000 cycles

FG-25z CR-HVG

076456

3– 25 ozf.in

2– 17.7 cN.m 1/4" F/Hex

2.8 oz.

4.1″

FG-50z CR-HVG

076457

20 – 50 ozf.in 14.1 – 35.3 cN.m 1/4" F/Hex

2.8 oz.

4.1″

Compatible Cleaning Solvents

Organic cleaning solvents compatible with Nitrile. Mountz recommends Isopropyl Alcohol.

Fluorinated solvent cleaners such as: • MS-250M PFPE Re-move • Castrol Brayco IC X-100 • TorrLube Solvent TS-86 • TMC-HFE-367E

FG-8i CR-HVG

076458

1.6 – 8 lbf.in

18 – 90 cN.m 1/4" F/Hex

7.3 oz.

5.2″

FG-20i CR-HVG

076459

2 – 20 lbf.in

22 – 226 cN.m 1/4" F/Hex

7.3 oz.

5.2″

FG-40i CR-HVG 076460

4 – 40 lbf.in 0.4 – 4.5 N.m 1/4" F/Hex

11.5 oz.

6.3″

FG-125i CR-HVG

076461

25 – 125 lbf.in 2.8 – 14.1 N.m 1/4" F/Hex

11.5 oz.

6.3″

6

7

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