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Silver metal gas lift cylinder with black piston, 2 inch diameter body, adjustable height markings

WORKPRO HG-HK079-01 Class 4 Gas Lift Cylinder 12"-18" 1000 lbs

SKU CH-N2YV-J9SYX

Heavy-duty Class 4 gas lift cylinder adjusts 12 to 18 inches, supports 1000 lbs, fits standard 2-inch mounts with 1.1-inch piston

  • Fit and compatibilityAdhesives; Enamels; Epoxies
  • Main materialMetal
  • Adjustable height range of 5.9 inches from 11.8 to 17.7 inches
  • Supports up to 1000 lbs with Class 4 SGS and BIFMA certification
  • Fits standard chairs with 2 inch outer diameter and 1.1 inch piston
  • Smooth 360 degree swivel and height adjustment via precision gas sealing
  • Simple drop-in installation with no extra screws required

Universal Fit Office Chair Cylinder

This WORKPRO HG-HK079-01 gas lift cylinder replaces the pneumatic lift on most executive office chairs. It uses a standard 2-inch mounting hole with a 50 mm outer diameter and 28 mm piston diameter. The unit is new and built from thickened steel with an anti-explosion decompression design.

Class 4 Hydraulic Height Limits

The adjustable stroke is 5.9 inches, giving a fitted height range of 11.8 to 17.7 inches. Buyers must measure the old cylinder before ordering because the installed height may sit higher than expected. The 45 mm base shaft and 360-degree swivel action rely on the chair accepting the exact 2-inch standard.

1000 lbs Load Rating Decides Fit

This cylinder is rated for 1000 lbs and carries SGS and BIFMA certification for that capacity. It is not suitable for chairs or users exceeding that weight. Buyers needing a higher load rating or a different stroke length must select another part.

How it compares

Measured against everything we stock in Lifting & Material Handling, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 59% of the 1,558 comparable items (median $34.99).

Specifications

Product
Brand nameWORKPRO
Part numberHG-HK079-01
Size & build
Main materialMetal
Compatibility
Fit and compatibilityAdhesives; Enamels; Epoxies

Questions about this item

Which height range should I choose for my chair?

This cylinder adjusts from 11.8" to 17.7" installed height, giving a 5.9" travel range. Measure your old unit first; the installed height may sit higher than expected.

What does the 1000 lbs rating mean in daily use?

The Class-4 rating certifies it supports up to 1000 lbs without wobble, leakage or failure, using thickened steel and an anti-explosion decompression design.

Will the 2" mounting hole fit my chair base?

It has a 2" (50mm) outer diameter, 1.1" (28mm) piston and 1.77" (45mm) base shaft, matching most standard office chairs that accept a 2-inch mounting hole.

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