Outer single hydraulic prop I plant specializing in the production of external injection-type hydraulic prop, if necessary, call the phone number on the contact picture. Professional manufacturers, creating high-quality external injection-type hydraulic prop. Since the outer single hydraulic prop lumen high working pressure parts, high precision, especially in the fuel tank, the sealing surface of the plunger, with three valves and seals, and other technical requirements are very strict, easily damaged by improper use. Therefore, when using the hydraulic prop in order to give full play to its advantages, in addition to the operational and theoretical application of a set of scientific management approach, the more important is the pillar of maintenance work must have a reliable and skilled maintenance tools technical level, so as to ensure the quality of maintenance struts. Outer single hydraulic prop has a simple structure, easy maintenance, initial support force, reliable performance, fast-liter column, the working stroke, high working resistance, good maintenance condition and other characteristics. Its setting load 78.5 ~ 117.8kN (pumping pressure is 10 ~ 15MPa), the rated working hydraulic pressure of 31.6 ~ 49MPa, rated working resistance of 245 ~ 249kN, working medium used is 1 ~ 2% M-10 号 (MDT No.) emulsion. Outer single hydraulic prop repair the primary issue is to ensure the sealing performance pillars. Due to underground production conditions and the environment, causing the sealing surface rust coating the pillars, the height of the coal dust, ash contaminate the sealing surface or seal, leaving the seal failure, can not make a normal exercise pillars supporting performance. Three valves are the backbone of the heart, pillars lift column, load, unload, and all functions are guaranteed by the three valves. So three valves failure will affect the normal operation pillar. Outer single hydraulic prop model interpretation and specific parameters: D: hydraulic prop; W: External Injection; 35: maximum height of 3500 (mm) DW35 hydraulic prop: Maximum height: 3500 (mm), stroke: 800 ( mm), Weight: 82.8kg DW31.5 hydraulic prop: Maximum height: 3150 (mm), stroke: 800 (mm), Weight: 76.4kg DW28 hydraulic prop: Maximum height: 2800 (mm), stroke: 800 (mm), Weight: 70kg DW25 hydraulic prop: Maximum height: 2500 (mm), stroke: 800 (mm), Weight: 58kg DW22 hydraulic prop: Maximum height: 2200 (mm), stroke: 800 ( mm), Weight: 55kg DW20 hydraulic prop: Maximum height: 2000 (mm), stroke: 760 (mm), Weight: 49kg DW18 hydraulic prop: Maximum height: 1800 (mm), stroke: 690 (mm) , Weight: 47kg Ji Ning Weitai Mining Equipment Co., Ltd. is specialized in the production of mining machinery and mining explosion-proof electrical professional manufacturers, the products meet explosion-proof standard coal Ann, specific products are: hydraulic prop: general hydraulic prop, within NOTE formula (hand type) hydraulic prop, glass, steel hydraulic prop explosion-proof electrical class: KTC103 mine communication blocking control device, dust concentration meter, gas measurement, gas sensors, eight belt protection, mine sound and light annunciator 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 drilling, mining Hammer 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, portable fire prevention and grouting equipment, mining A tube with a fire-retardant mine blast doors: vertical shaft blast doors, blast doors Inclined, refuge chamber door, waterproof airtight doors, fire gates, impact door "integrity through business grand, Seiko casting materials people Aetna" is what we have adhere to the concept, to ensure product quality, to protect life and property safety of users, the responsibility is extremely heavy!