Zero-Gravity Tool Balancer TECNA 9426 (353 to 397 lb, 8.2ft)

The TECNA 9426 is a zero-gravity tool balancer for loads weighing 353-397 lb. At this capacity the load is normally a fixture, a sub-assembly or a multi-tool head rather than something one operator carries. Zero-gravity means the load stays wherever you leave it instead of returning to a rest position - let go at mid-height and the tool simply hangs there, weightless to the operator. Cable travel is 8.2 ft (2,500 mm) and capacity is adjustable across 353-397 lb (160-180 kg), set with a worm screw. The load is carried by a spring drum inside, which is why balancers like this are also called spring balancers. It has a manual lock to hold the load at any height: turn the knob to the locked position to stop the drum, and back for normal working. For safety the shutter only releases when it lines up with the drum, so if it does not free straight away, move the load slightly up and down. Only operate the lock with the load hanging. A centrifugal safety device locks the drum if it ever turns faster than the danger limit - a load coming unhooked, or a cable breaking. If it trips, discharge the drum spring immediately and completely and have the balancer inspected. If the drum spring ever breaks, a safety device blocks the balancer so the load cannot fall. If it trips, do not try to free it - have the balancer serviced. Size it on the total hanging weight - the tool, its accessories and the length of hose or cable the balancer lifts - which has to sit inside the capacity range. Electric, pneumatic and hydraulic tools all suspend the same way. Specifications: Capacity: 353-397 lb (160-180 kg), adjustable by worm screw Cable travel: 8.2 ft (2,500 mm) Unit weight: 95.24 lb (43.20 kg) Ambient temperature: 41 to 140 F (5 to 60 C) Stainless steel cable Ribbed and sealed aluminium alloy body Safety suspension Manual lock to hold the load at any height Safety device against load dropping due to spring breakage Centrifugal safety device Adjustable stroke limiting device Taper drum rotating on ball bearings Cable guide in antifriction material Rotary upper hook with ball bearing Lining-up upper hook Visible cable for inspection Inert spring drum assembly Extension cables are available if the balancer has to hang higher than the load needs to reach: 1.6 ft (500 mm, 72969/0,5/120), 3.3 ft (1,000 mm, 72969/1/120), 8.2 ft (2,500 mm, 72969/2,5/120), 9.8 ft (3,000 mm, 72969/3/120) and 16.4 ft (5,000 mm, 72969/5/120), stainless steel 5 mm cable with a 120 mm carabiner. Options for this model: Option B, the lock and unlock control you work from floor level, is ordered as the TECNA 9426.B, and option B1, the reinforced version of it, as the TECNA 9426.B1. Both are built at the factory and have to be specified with the order. Option RI is TECNA 70477, the insulated rotary hook: it electrically insulates the hanging load - welding gear, for instance - and lets the tool turn without twisting the cable. TECNA also builds this model as the 9426G, with a rubber-covered aluminium body, to order. The structure you hang it from has to be stronger than five times the balancer weight plus the maximum load - and if several balancers share one structure, five times the total of all of them, each on its own independent connection point. Always connect the safety suspension to a separate support, and set the stroke limiter so the load never comes to rest above the operator. Made in Italy, to DIN 15112. Breaking load is guaranteed at a minimum of five times the declared maximum load on every sensitive part. Every production lot is sample-tested too: a static test at 1.25 times the maximum rated load held for ten minutes at full stroke, and a dynamic test at 1.1 times maximum load run for an hour. The same balancer is also built as the 9426RL for food processing and washdown areas. Other capacities in the 9422-9426 series: 9422 (220-265 lb), 9423 (265-309 lb), 9424 (287-331 lb), 9425 (309-353 lb). Cable travel is the working stroke - how far the tool itself has to travel through the job, not how high the balancer hangs. If you need more of it at this capacity, the TECNA 9456 is the same capacity with 9.8 ft of travel. If the balancer simply hangs high above the work, an extension cable is the cheaper answer - the travel you need is set by the work. Browse all zero-gravity balancers. Supported in the USA by Tool Balancers USA.