Transcript
Specifications Combined Lifting and Stabilizing Strut, 10 U.S. Ton (9.07 metric ton) Introduction These purchase specifications cover the minimum requirements of a combined Hydraulic Lifting and Stabilizing Strut, 10 U.S. ton (9.07 metric ton) to be purchased. The combined Lifting and Stabilizing Strut shall be able to stabilize a minimum of 20,000 lbs. (9072 kg) working load capacity (with a rated 4:1 safety factor), have a minimum of 10 U.S. ton (9.07 metric ton) lift capacity (with a rated 2:1 safety factor) and be extendable to 51.1 in (129.7 cm). As a minimum the system must consist of:
Combined Lifting and Stabilizing Strut, 10 U.S. ton (9.07 metric ton), (Equivalent to Paratech HydraFusion Strut, 22-79HA16)
Instruction to Bidders Bidders shall conform as much as possible to these specifications to ensure interoperability with other equipment. Exceptions or omissions must be set out in writing on a separate sheet entitled “Exceptions” which must accompany the bid. Failure to do so will result in an automatic rejection of the bid. The buyer shall be the sole interpreter of the intent of any clause of these specifications and shall be the sole judge as to whether the equipment or any part thereof complies with the specifications. The buyer reserves the right to reject any and all bids, to waive informalities in bidding, to negotiate small options with the successful bidder and to accept the bid, which in the opinion of the buyer, will be in its best interest. General System Construction Features The combined Lifting and Stabilizing Strut shall be made from 3.5 in (8.89 cm) diameter extruded seamless aluminum alloy tube with a telescoping 2.94 in (7.47 cm) aluminum alloy shaft. The shaft shall be extendable/retractable with a triple lead AcmeThread and have an adjustable locking collar to lock the strut in any desired extended position. The shaft with locking collar shall be capable of shoring 20,000 lbs. (9072 kg) with a 4:1 safety factor. The strut must default to a locked position. The internal shaft shall extend hydraulically through an internal mounted 10 U.S. ton (9.07 metric ton) hydraulic cylinder with a 2:1 safety factor. The hydraulic cylinder shall be capable of a minimum 16 in (40.4 cm) stroke to be used as an extendible jacking device when installed between base plates and/or extensions for rescue operations.
1
Each combined Lifting and Stabilizing Strut shall be equipped with a Dual Shaft End Adapter made from high strength aluminum alloy. The Dual Shaft End Adapter shall allow connection of the combined Lifting and Stabilizing Strut to a compatible strut, extension, or extension converter with use of an internal, spring-loaded Adapter Ring. The Adapter Ring shall provide a bearing surface when the combined Lifting and Stabilizing Strut is used with smaller diameter compatible struts or extensions. A locking pin shall be provided to secure compatible products to the adapter. The combined Lifting and Stabilizing Strut shall be assembled with a 10,000 psi (689.5 bar) steel swivel fitting which may be rotated 360 degrees around its axis. The swivel fitting shall be equipped with polyurethane seals and PTFE backup rings and include a female end no spill coupling to accept the male coupler to the pump and hose assembly. All aluminum alloy components of the combined Lifting and Stabilizing Strut shall be protected with a hard coat anodize finish to reduce electrical conductivity and increase strength and longevity. All steel components of the combined Lifting and Stabilizing Strut shall be protected with a black oxide to inhibit rust to the parts. The outer shaft of the strut and dual shaft end adapter shall display highly reflective labels for ease of use at night or in dark environments. Quantity, Dimensions and Capacities ___ Combined Lifting and Stabilizing Strut(s) equivalent to the following specifications must be supplied: One combined Lifting and Stabilizing Strut (equivalent to Paratech HydraFusion Strut, 2279HA16) with these minimum capacities: Weight of the combined Lifting and Stabilizing Strut must not exceed = 41 lbs (18.5 kg). Overall dimensions of the combined Lifting and Stabilizing Strut must not exceed: Width: Collapsed Length: Extended Length:
3.98 in (10.11 cm) 35.4 in (89.9 cm) 51.1 in (129.7 cm)
Each combined Lifting and Stabilizing Strut shall have the ability to lift a minimum of 10 U.S. Tons (9.07 metric ton) with a 2:1 safety factor rating and shore a minimum of 20,000 lbs. (9072 kg) with a 4:1 safety factor rating. The hydraulic cylinder shall be capable of a minimum 16 in (40.4 cm) stroke with use of an internally mounted 10 U.S. ton (9.07 metric ton) hydraulic cylinder with a 2:1 safety factor. The internal shaft of the strut must be able to extend a minimum of 16 in (40.4 cm) and be able to lock into place with use of a positioning locking collar. The combined Lifting and Stabilizing Strut must include a builtin adapter to allow for use with compatible smaller diameter struts, extensions and extension converters.
2
3
