Single Hydraulic Prop

Single Hydraulic Prop Information

Single Hydraulic PropProduct Information

Single hydraulic prop is a new environmentally friendly support equipment, both hinged roof beams and the metal used for supporting high-grade conventional mining and use of face support artillery and mechanized mining face roof support ends can also be done individually point support columns or other temporary use.

Single hydraulic prop for seam angle is less than 25 degrees - 35 degrees inclined coal seam mining face, the adaptation of the coal seam roof and floor conditions are: roof pillars behind do not affect the recovery of base should not be too soft, prop depth is not pressed into the floor deterioration of the integrity of the base plate, or should increase the base. .

In the coal mining face relatively loose cannon when used on the live cylinder coating surface to take protective measures to prevent collapse. With wooden roof beams and pillars or columns used to do, you should replace the column caps cover to prevent damage to wooden beams.

Single Hydraulic Prop Classification

Suspension Single Hydraulic Prop
Double Telescopic Suspension Single Hydraulic Prop
DN Inner Injection Single Hydraulic Prop
FRP(glass fiber reinforced plastics) Single Hydraulic Prop

Suspension Single Hydraulic Prop is one kind of Single Hydraulic Prop, and has one more feature than outer injection single hydraulic prop, DWX single hydraulic prop used plunger suspension.Suspended four-fifths of the work force reaches the resistance, the force was only fifth column,DWX-type pillar three valves located on the handle body,easy to operate.

Currently on the market's most widely used double telescopic hydraulic prop is DWS type. The double telescopic hydraulic prop, including the cylinder, plunger, base, cover, handle body, with three valves and connecting units, of which the upper end of the cylinder sleeve solid brim of the handle body, built with the fuel tank The plunger, the three valves mounted on the connecting sleeve. Hydraulic prop increasingly widely used in the production of its traditional wooden pillars supporting metal friction compared with high recovery,supporting safe and reliable, working resistance constant, setting load is high.

The working fluid of DN Inner Injection Single Hydraulic Prop is the 5th hydraulic oil, back to the column when the hydraulic oil flow back into the cylinder plunger cavity to form a closed loop; does not require pumping and piping systems, auxiliary equipment, low cost; mains and pumping stations in the absence of local still use, flexibility, easy management and simple.Could be applied for coal mining face of the roof support.

FRP single hydraulic prop with temporary support equipment, coal mining industry is drivage roadway maintenance, the advanced supporting and temporary support new equipment.The product in the emulsion or static pressure water as the working medium, because of the key parts.

According to liquid supplying methods and working liquid, can be divided into the external liquid supply type (referred to as the external injection type) and inner liquid supplu type (referred to as the inner injection type) pillar.

According to different working stroke, DW Single hydraulic prop can be divided into single telescopic (single working stoke) hydraulic prop and the double telescopic(double working stoke) hydraulic prop.

Pictures for reference only as different product batch & specs.
Please contact sales for confirm.

Single Hydraulic Prop Features

Long Working Stroke

especially for large height variation face of underground roof.

High Supporting Strength

Weld-free and adopts suspension technology, high pressure liquid suspension directly act at the top end, reached four-fifths of resistance, force only one-fifth columns, greatly improving supporting stability and load capacity.

Leakage Easy to be Found

The improved structure avoids the spill within virtual top, take off the top of the prop. Once leaked, will be able to check directly with the naked eye at the underground site.

Easy to Maintaince

Simple structure, assembly and disassembly convenient, easy to maintain, secure, reliable, and so on.

Single Hydraulic Prop Parameters

Item	Unit	DW35	DW31.5	DW28	DW25	DW22	DW20	DW18	DW16	DW2214	DW12	DW10	DW8	DW6
Max Height	mm	3500	3150	2800	2500	2200	2000	1800	1600	1400	1200	1000	800	600
Min. Height	mm	2700	2350	2000	17.	1440	1240	1110	1005	900	792	685	578	485
Working Stroke	mm	800	800	800	800	800	760	690	595	500	408	315	222	145
Weight	kg	82.8	76.4	70	58	55	49	47	43.6	39.9	36.3	32.0	26.7	23
Valve-Beam Distance	mm			250	527	267	132
Working Load	KN	200	200	31.8	250	300
Working Hydraulic Pressure	Mpa	25.5	25.5		31.8	38.2
Initial Supporting Power	KN					118-157
Pump Station Pressure	Mpa					15-20
Rise Speed	mm/s					≥60
Fall Speed	mm/s					≥40
Oil Cylinder Dia	mm					Φ100
Base Square	c㎡	113	113	113		109
Actuating Medium						2%Emulsion

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