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2. Pumpjack - Wikipedia

   en.wikipedia.org/wiki/Pumpjack

   Pump size is also determined by the depth and weight of the oil to remove, with deeper extraction requiring more power to move the increased weight of the discharge column (discharge head). A beam-type pumpjack converts the rotary motion of the motor (usually an electric motor ) to the vertical reciprocating motion necessary to drive the ...

3. Scaffolding - Wikipedia

   en.wikipedia.org/wiki/Scaffolding

   A pump-jack is a type of portable scaffolding system. The scaffold rests on supports attached to two or more vertical posts. The user raises the scaffolding by pumping the foot pedals on the supports, like an automobile jack. [30]

4. Category:Construction equipment - Wikipedia

   en.wikipedia.org/.../Category:Construction_equipment

   Construction equipment rental companies (1 C, 14 P) E. ... Jack post; Jackhammer; ... Loader (equipment) M. Mechanical connections; Movable scaffolding system; N ...

5. Layher - Wikipedia

   en.wikipedia.org/wiki/Layher

   Layher Holding GmbH & Co. KG is a globally leading [1] German manufacturer of scaffolding, protective and event systems and ladders. The company operates three production facilities in Germany . The headquarters in Güglingen-Eibensbach produces steel scaffolding components, while the second plant in neighbouring Güglingen makes aluminium and ...

6. Pump It Up! The Best Car Jacks for 2024, Tested - AOL

   www.aol.com/pump-best-car-jacks-2023-160900757.html

   The car jack may not be the most exciting of gadgets, but it is one of the most important. ... we were amazed by this 87-pound beast's lift-per-pump, with a mere 1.5 pumps of the arm raising the ...

7. Jack (device) - Wikipedia

   en.wikipedia.org/wiki/Jack_(device)

   A jack which can lift a mobile home. A jack is a mechanical lifting device used to apply great forces or lift heavy loads. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic power. [1] The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be ...