Tiger PROLH Professional Lever Hoist

Durham Lifting’s Tiger Professional Lever Hoist Model No. PROLH is lightweight, compact and rugged construction with the handle, gear case and brake cover made entirely of pressed steel, producing strong resistance to impact damage. Using only the highest quality materials precisely machined throughout ensures the PROLH is the ideal hoist for long term use with less maintenance and servicing costs. 

The professional’s choice, ranging from 800kg – 20000kg and incorporating a patented Quad Cam Pawl Design and Torsion Brake System with UK Network Rail PADS Certification (Certificate of Acceptance PA05/06651), exceeding all the requirements within BS EN 13157: 2004+A1:2009, ANSI/ASME B30.21, AS1418.2 and SANS 1636.

Also available with stainless steel load chain or spark resistant hooks.

Safety Brake
The PROLH comes equipped with a unique dual brake mechanism that automatically engages when the lever hoist feels the slightest resistance on the bottom hook. This key feature means that the PROLH will raise, hold, and lower the lightest of loads without slipping. The two stage process protects against accidental light load failures caused by putting the hoist into neutral whilst under load. The bonded friction discs are free of asbestos and achieve highly efficient braking. Load Chains: Tiger only use the highest quality alloy, calibrated load chains in Grade 80 (T) or 100 (V) conforming to EN818-7 and ISO 16872. The PROLH comes as 1.5mtr HOL as standard but can be chained up to whatever length is required. Stainless steel load chain available on request for certain capacities.

All major components are heat treated and precisely machined to ensure long term smooth operation. High gear ratios keep physical effort to a minimum. Light Load Protection: The unique brake system designed for the PROLH guarantees a light load protection at 2{e36f5a91c998de831b71657463ebcebc0f1922fe4adb9f636df27af744ef8d81} of the rated capacity.

Quad Cam Type Brake Pawls
This latest development in brake efficiency guarantees permanent engagement of at least one of the two reciprocating cam pawls fitted to the PROLH, ensuring the pawl only just clears the ratchet wheel, with the minimum of clearance as required under BS 4898:1973. But most importantly, in the unlikely event of a pawl spring failure, this new design will ensure the brake is still fully functional and the load is sustained without damage to the mechanism.

Brake Efficiency
Tiger uniquely uses an 8 point multi start thread pinion shaft which has measurably increased the efficiency in brake reaction times.

Overload Protection
The PROLH lever hoist can be fitted with a slipping clutch overload mechanism to protect it from overload. When the load limit is exceeded, the clutch in the chain wheel will slip, allowing the handle to be operated whilst not engaging the gear box. This prevents further lifting of the load, though lowering is still possible.

Tiger hooks incorporate the latest Patent Pending (GB1420387.1) “EZ Check” feature which allows operators and inspection engineers to easily check to see if the hoist has been previously overloaded or shock loaded by simply measuring between the triangle of pop marks. Tiger drop forged and heat treated alloy hooks are furnished with heavy duty spring latch kits that fully engage into the recessed nose of the hook safeguarding the load when side loading of the latch occurs and offering maximum load security. The swivel hooks are attached to the yoke using high grade nuts & bolts allowing for complete inspection during any statutory inspection or written scheme maintenance.
Also Available with Spark Resistant Hooks

One Piece Construction Pinion Gears
PROLH gearboxes contain one piece pinion gears. This revolutionary process in gear manufacturing uses drop-forged raw material, precision machined and heat treated with precise ratios between teeth and body.

Chain End Stops
User friendly heavy duty end stops make it easy for the operator to position the chain while “freewheeling”, but most importantly this “end stop” will hold a load of at least 2.5 times the rated capacity when supporting the full load without restraint from other components e.g. brake or gearing.

Chain Stripper
The new chain stripper is specifically designed to guide the load chain safely onto or off the load sheave without snagging or jamming. The fluted chain stripper allows the safe use of the PROLH when used in any orientation. Forgings: Recessed forgings offer full protection to the load chain anchor bolts on all our bottom hooks.

Adaptor Components
Drop forged adaptor maintaining maximum strength. Tested and certified to 4:1 factor of safety.

Self-locking (safety) hook, clevis shackle, reevable egg (master) link or sling hook fitting available

Tiger lever hoist handles are ultra-strong, with strengthening side ribs.

This special feature
• Protects against impact damage
• Protects the label
• Increases its robustness and longevity
• Eliminates torsion

The PROLH lever hoist has undergone a full test program that includes:

Type Testing
• Ultimate strength test, at least 4 times the Working load limit (WLL)
• Chain end anchorage test, passing at least 4 times the WLL without any restriction of the brake   or gears Test on every hoist
• Proof loading at 1.5 times the rated capacity
• Light load testing at maximum of 2{e36f5a91c998de831b71657463ebcebc0f1922fe4adb9f636df27af744ef8d81} rated capacity Grease: High performance premium
quality grease allows the PROLH hoists to be certified for use within a temperature range of
   -40°C to +50°C far exceeding the requirements of current standards.

The PROLH is finished in high quality powder coat paint offering excellent corrosion protection.

PLH-00750.82312823629515899 2845 6.311.57.5 Technical Image PLH-0075
PLH-01501.526154360320172104 3451 7.111.510.5 Technical Image PLH-0150
PLH-03003.038182360400195108 3656 10.011.518.0 Technical Image PLH-0300
PLH-06006.040242360570195108 4970 10.021.528.5 Technical Image PLH-0600
PLH-100010.047370360630195108 5487 10.031.546.0 Technical Image PLH-1000
PLH-150015.044566360840195108 5981 10.051.5112.0 Technical Image PLH-1500
PLH-200020.0494703601050250160 81110 10.061.5156.0 Technical Image PLH2000