Within the injection-type hydraulic prop I plant specializing in the production of injection-type hydraulic prop, if necessary, call the phone number on the contact picture. Professional manufacturers, creating quality within the injection-type hydraulic prop. Within the injection-type hydraulic prop, which is characterized with pump and oil itself, located at the branch with a hand to shake can quickly rise column, the working fluid is not discharged when the drop column, can better protect the environment, and easy to use , flexible management, equipment simple. Within the injection-type hydraulic prop is a coal mining face in China is currently the most commonly used constant resistance type support equipment, metal roof beam with it and been widely used in the coal mine general mechanized coal face, or a combination of mechanized mining coal face end or boring class support for temporary use, to improve the safety and efficiency of operation have good results. Within Note Prop Features: Advantages 1: light weight, large carrying capacity; lift column fast, convenient prop; reliable sealing performance; no pumping and piping systems for liquid, long column does not discharge the liquid; holding clean environment; the use of flexible, easy to operate; 2 advantages: within Note Prop can be used alone or in combination with metal hinged roof beams supporting the use of; Advantage 3: hydraulic prop in the roof, base, handle, stigma and other key part of it is processed by forging together. Advantages 4: Raw materials used in steel by 27SiMn IF heat treatment automatic production line processing, strut cylinder cavity coating of tin bronze, galvanized plunger surface phosphate processing; within the injection-type hydraulic prop models and technical parameters DN06-250 / 80: Maximum height of 0.6m, stroke 140mm, supporting force 25 tons, bore 80mm DN08-250 / 80: maximum height 0.8m, stroke 210mm, supporting force 25 tons, bore 80mm DN10-250 / 80: maximum height 1.0m, stroke 300mm, supporting force 25 tons, bore 80mm DN12-250 / 80: maximum height 1.2m, stroke 350mm, supporting force 25 tons, bore 80mm DN14-250 / 80: maximum height 1.4m, stroke 400mm, supporting force 25 tons, bore 80mm DN16-250 / 80: maximum height of 1.6m, stroke 500mm, supporting force 25 tons, bore 80mm DN18-250 / 80: maximum height of 1.8m, stroke 600mm, supporting force 25 tons, bore 80mm DN20-300 / 90: Maximum height 2.0m, stroke 640mm, to support a force of 30 tons, Bore 90mm DN22-300 / 90: maximum height 2.2m, stroke 700mm, to support a force of 30 tons, Bore 90mm DN25-250 / 90: maximum height 2.5m, stroke 700mm, support force 25 tons, bore 90mm DN28-250 / 90: maximum height 2.8m, stroke 700mm, supporting force 25 tons, bore 90mm DN31.5-160 / 90: Maximum height *m, stroke 700mm, supporting force 16 tons, 90mm bore DN35-160 / 90: maximum height of 3.5m, stroke 700mm, supporting force 16 tons, bore 90mm DN38-150 / 110: maximum height of 3.8m, stroke 700mm, supporting force 15 tons, bore 110mm DN40-150 / 110: maximum height 4.0m, stroke 700mm, supporting force 15 tons, bore 110mm DN42-150 / 110: maximum height of 4.2m, stroke 700mm, supporting force 15 tons, bore 110mm DN45-150 / 110: maximum height of 4.5m, stroke 700mm, supporting force 15 tons, bore 110mm economic 宁伟泰 Mining Equipment Co., Ltd. is specialized in producing mining explosion-proof electrical professional manufacturers, the products meet Ann coal mine explosion-proof standard machinery and specific products: hydraulic prop: general hydraulic prop, within the injection-type (hand type) hydraulic prop, glass, steel hydraulic prop explosion-proof electrical categories: KTC103 mine communication blocking control device, dust concentration meter, gas measurement, gas sensors, eight belt protection, mine sound and light signals Mining Machinery: scheduling winch, pneumatic winch, winch throttle, winch, winch mine rake (rake electric), shaft sinking winch (vehicle stability), rake bucket rock machine, drilling machine, bolt rig, pneumatic impact drill, hammer Mine Fire Rescue categories: air pressure, self-help system, water supply system self-help, self-help device air pressure, water supply, mining explosion-proof submersible pumps, gel pumps, blocking agent injection pump, fire prevention and grouting mobile devices Mine fire-retardant beam tube