Certified Anti-Vibration Gloves: Granberg 4330

Understanding Hand-Arm Vibration Syndrome

HAVS is a permanent condition caused by prolonged exposure to vibrating tools, jackhammers, impact wrenches, angle grinders, and concrete breakers. Symptoms include numbness, tingling, loss of grip strength, and in severe cases, irreversible nerve and vascular damage. Employers have a legal obligation to minimise vibration exposure.

How the Granberg 4330 Reduces Vibration

A specialised vibration-dampening layer in the palm absorbs frequencies between 25 Hz and 1250 Hz, the range most harmful to hands. The ergonomic construction distributes pressure evenly, reducing localised stress points that accelerate fatigue.

The MacroSkin Pro® palm with silicone print provides strong grip in wet and dry conditions without requiring excessive grip force, which itself increases vibration transmission to the hand.

Certifications

EN ISO 10819:2013, transmissibility T(M) 0.769, T(H) 0.592. Verified vibration reduction across medium and high frequency ranges.

EN 388:2016+A1:2018 (2221X), abrasion 2, cut 2, tear 2, puncture 1. Adequate mechanical protection for general tool handling.

Practical Applications

Construction, demolition, mining, road maintenance, automotive repair, and forestry. Any role involving sustained use of pneumatic, hydraulic, or electric power tools.

In construction and mining operations, workers using jackhammers and breakers for extended periods report reduced numbness and tingling when switching to the 4330, enabling longer productive work periods within safe vibration exposure limits.

Fit and Comfort

Unlined and breathable in black and grey. Adjustable neoprene cuff with hook-and-loop closure secures the glove during heavy tool operation. Tight fit in sizes 8 to 12 with 24 cm length.

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