View Larger Heavy-Duty Balancers - 22 - 143 lb Capacity Series consist of 8 models. View Model Specifications Demo This Tool > FeaturesRibbed and sealed monobloc construction in aluminum alloy. Stainless steel cable. Safety device against load dropping due to the spring breakage (>3kg). Upper rotary suspension with safety hook. Locking device to block the load at any height. Adjustable stroke limiting device. Cable guide in anti-friction material.