Introduction
Hydraulic props are used in longwall workings to provide temporary roof support during underground coal mining operations.
Features
1.Single-Prop Structure
Independent single-column design with a compact component layout.
2. Hydraulic Support Output
High-load hydraulic pressure of around 30 MPa level inside the cylinder forms a direct support output.
3. Adjustable Working Height
Hydraulic column with a defined adjustable stroke of approx. 1.2–4.5 m, allowing on-site height setting.
Applications
1.Longwall Face Support
Provides roof support during coal extraction on longwall working faces.
2.Roadway Excavation Support
Used to support the roof in roadway driving and tunneling operations.
3.Temporary Support Adjustment
Used for lifting and unloading support during on-site height adjustment.
Company Services
Product Selection Support
Regional Technical Coverage
Operator Training
On-Site Demonstration
FAQ
Q: Are you a trading company or a factory?
We are a factory, warmly welcome you to visit our factory
Q: What do you need for a detailed quotation?
Please tell me the product model you need, the number of products, the requirements for the surface treatment of the product, etc.
Q: How about your technical level?
We focus on the production of coal mine support products for many years, with rich experience in research and development, we are the first manufacturer in the country to obtain the safety standard of five-meter single hydraulic pillar, and Shandong University of Technology jointly develop intelligent mining equipment, at the same time in 2025 we also help Dongtai Group to develop the required six-meter single hydraulic pillar.
Q: Do you have a safety certificate for your products?
Our products have a national certification safety certificate.
Q: How do you guarantee the quality of your products?
Each of our products needs to be inspected for quality before leaving the factory, and our products are closely related to the lives of coal miners, so we strive to make the best product quality.
Q: Can you provide customization, modification drawings and other requirements?
Of course, if you need, we will modify our products according to your requirements and the actual situation of the coal mine.
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| Model project |
Max height (mm) |
min height (mm) |
Working stroke (mm) |
Rated working resistance (KN) |
weight (Kg) |
Rated working pressure (Mpa) |
Pump station pressure (Mpa) |
Initial support (KN) |
Bore diameter (mm) |
Woek liquid |
| DW06-300/100 | 630 | 485 | 145 | 300 | 25.1 | 38.2 | 15～ 20 |
118～157 | 100 | Emulsioncontaining 1% to2% M10emulsified oil |
| DW08-300/100 | 800 | 578 | 222 | 26.2 | ||||||
| DW10-300/100 | 1000 | 685 | 315 | 32 | ||||||
| DW12-300/100 | 1200 | 792 | 408 | 36.3 | ||||||
| DW14-300/100 | 1400 | 900 | 500 | 40 | ||||||
| DW16-300/100 | 1600 | 1005 | 595 | 43.5 | ||||||
| DW18-300/100 | 1800 | 1110 | 690 | 47 | ||||||
| DW20-300/100 | 2000 | 1240 | 760 | 48 | ||||||
| DW22-300/100 | 2240 | 1440 | 800 | 55 | ||||||
| DW25-250/100 | 2500 | 1700 | 800 | 250 | 58 | 31.8 | ||||
| DW28-250/100 | 2800 | 2000 | 800 | 70 | ||||||
| DW31.5-200/100 | 3150 | 2350 | 800 | 200 | 76.4 | 22.5 | ||||
| DW35-150/100 | 3500 | 2700 | 800 | 150 | 82.8 | 19.1 | ||||
| DW38-180/110 | 3800 | 2700 | 1100 | 180 | 96.5 | 19.1 | 10～ 20 |
95～190 | 110 | Emulsioncontaining 1% to2% M10emulsified oil |
| DW40-180/110 | 4000 | 2900 | 1100 | 101.5 | ||||||
| DW42-180/110 | 4200 | 3100 | 1100 | 103 | ||||||
| DW45-180/110 | 4500 | 3400 | 1100 | 111 |
