2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop

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  • 2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
  • 2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
  • 2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
  • 2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
  • 2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
  • 2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
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  • Overview
  • Product Description
  • Product Parameters
  • Detailed Photos
  • Certifications
  • Customer Visits
  • Exhibition
  • Company Profile
Overview

Basic Info.

Model NO.
DW Hydraulic Prop
Standard
GB
Surface Treatment
Sand Blast
Manufacturing Process
Stamping
Material
Stainless Steel
Model
Dw35 Hydraulic Acrow Props
Max Height (mm)
3500 Single Hydraulic Props in Mining
Min Height (mm)
2700 Underground Coal Mining Hydraulic Prop
Distance (mm)
800 Steel Supporter Shoring
Net Weight
82.8kg
Rated Resistance
150 Kn
Rated Fluid Pressure
19.1MPa
Pump Station Pressure
15 or 20 MPa
Transport Package
Export Standrad Package
Specification
Acrow Prop
Trademark
China Coal
Origin
Jining City, Shandong Province, China
Production Capacity
1000 Sets Per Month

Packaging & Delivery

Package Size
70.00cm * 70.00cm * 70.00cm
Package Gross Weight
59.000kg

Product Description

 

 CE Certification DN20 DN24 Acrow Props Coal Mining Hydraulic Props
2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
Product Description

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic PropIntroduction of The Product Has CE Certification DN20 DN24 Acrow Props Coal Mining Hydraulic Props

Single hydraulic props are divided into external liquid supply type (referred to as external injection type) and internal liquid supply type (referred to as internal injection type) according to their different liquid supply methods. According to different working strokes, the struts are divided into single telescopic (single stroke) struts and double telescopic (double stroke) struts. According to the different materials used, the pillars are divided into steel pillars and light alloy pillars.zmwm02
1. Piston-type single hydraulic prop
(1) Internal injection unit hydraulic pressure column
The inner-injection type single hydraulic prop relies on the internal liquid circulation of the prop to support the top plate under the action of manpower. It is mainly composed of top cover, breather valve, safety valve, live cylinder, oil cylinder block, strut piston, crank slider mechanism and other parts.
The internal injection type single hydraulic prop includes three processes of lifting the column and supporting it, loading, and unloading the column. However, due to the complex structure of the pillars, high maintenance and repair costs, high labor intensity, and high production costs, the usage is gradually decreasing.
2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
(2) External injection type single hydraulic prop
The external injection type single hydraulic prop is used to support the roof under the action of the pressure liquid provided by the emulsion pump station on the working face.
The external injection type single hydraulic prop structure is mainly composed of top cover, extension section, arc welding seam, three-purpose valve, column head, arc welding seam, handle body, movable column, oil cylinder, return spring, piston, base and so on.
2. Suspended single hydraulic prop
The suspended single hydraulic prop is a new type of external injection single hydraulic prop developed at the end of the 20th century. The structure of column head and no piston has the characteristics of large working stroke, wide range of use, strong anti-eccentric load capacity, safe and reliable use, etc., and has obtained good application results in production practice. Suspended single hydraulic props are divided into two categories: single telescopic and double telescopic props.
(1) Single telescopic suspension single hydraulic prop
The single telescopic suspension single hydraulic prop structure is mainly composed of top cover, suspension cover, movable column, handle valve body, oil cylinder, return spring, base, three-purpose valve and other components. Including the process of lifting the column and initial support, loading, unloading and returning to the column, the control of the column is completed by the three-purpose valve.
(2) Double telescopic suspension single hydraulic prop
Double telescopic suspension single hydraulic prop is mainly composed of top cover, suspension cover, movable column, sleeve cylinder, handle valve body, oil cylinder, middle cylinder, return spring, base, three-purpose valve and other components.

 

Product Parameters

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
Parameters of The Product Has CE Certification DN20 DN24 Acrow Props Coal Mining Hydraulic Props

 
Model DN06 DN08 DN10 DN12 DN14 DN16 DN18 DN20 DN22
Max Height mm 650 800 1000 1200 1400 1600 1800 2000 2240
Min Height mm 510 590 700 850 1000 1100 1200 1390 1540
Working Limit mm 140±10 210±10 300±10 350±20 400±20 500±20 600±20 610 700
Rated Working Resistance kN 250             300  
Rated Working Pressure MPa 49             46.3  
Cylinder Inner Dia mm 80             90  
Initial Support kN 49       68.7-78.5        
Base Area cm2 120                
Max. Torque On Handle N.m <200                
Increase Height per Handle Shake mm ≥12       ≥20        
Down Prop Seed mm/s >20       >30        
Working Medium 5# hydraulic oil                
  5#Hydraulic oil                
Weight kg 23 26 29 34 38 41 45 55 60
 
Detailed Photos

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
Photos of The Product Has CE Certification DN20 DN24 Acrow Props Coal Mining Hydraulic Props
2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
Certifications
2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop

 

Customer Visits

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop

Exhibition

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
 

Company Profile

2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop2m 2.5m 3.5meters Dw DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop

 




 

 

 

 

 

 

 

 

 

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