Introduction
1.Pump-Station Interface Design
2.High Pressure Tolerance
3.Antiseptic treatment
Applications
Applies vertical support at the coal mining working face during roof management.
Provides overhead support in excavated roadways under pressurized conditions.
Used to hold roof position during underground maintenance or component repair.
Provides interim roof support when shifting or extending support positions.
Deployed as additional roof support at the end of coal faces or transition points.
Company Service
Dedicated service staff assigned by sales region, with local offices where required.
On-site support for product selection, basic design coordination, and operation guidance.
Operator training and ground-level operation demonstrations provided as needed.
FAQ
Q: What information is needed for a quotation?
Product model, quantity, and basic usage or surface requirements.
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: Are the products safety certified?
Yes, they comply with national mining safety certification standards.
Q: How is product quality controlled?
Each unit is inspected before delivery.
Q: Can the product be adjusted to site conditions?
Technical adjustments and drawing modifications can be provided based on mine conditions.
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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 |
| DW45--250/110X | 4500 | 2520 | 1980 | 250 | 109 | 28.2 | 15～ 20 |
132.3～ 176.4 |
110 | Emulsioncontaining 1% to2% M10emulsified oil |
| DW42--250/110X | 4200 | 2360 | 1840 | 101 | ||||||
| DW40--250/110X | 4000 | 2250 | 1750 | 95 | ||||||
| DW38--250/110X | 3800 | 2140 | 1660 | 89 | ||||||
| DW35--300/110X | 3500 | 1980 | 1520 | 300 | 75.5 | 34 | ||||
| DW31.5--300/110X | 3150 | 1800 | 1350 | 67 | ||||||
| DW28--350/110X | 2800 | 1620 | 1180 | 350 | 61.1 | 39.7 | ||||
| DW25--350/110X | 2500 | 1450 | 1050 | 57.5 | ||||||
| DW22--350/110X | 2240 | 1300 | 940 | 52.5 | ||||||
| DW20--350/110X | 2000 | 1170 | 830 | 48 | ||||||
| DW18--350/110X | 1800 | 1055 | 745 | 44.5 | ||||||
| DW16--350/110X | 1600 | 940 | 660 | 41 | ||||||
| DW14--350/110X | 1400 | 830 | 570 | 37.5 | ||||||
| DW12--350/110X | 1200 | 720 | 480 | 33 | ||||||
| DW10--350/110X | 1000 | 615 | 385 | 29.5 | ||||||
| DW08--350/110X | 800 | 510 | 290 | 25.5 | ||||||
| DW06-350/110X | 630 | 420 | 210 | 23 | ||||||
| DW35-350/110XH | 3500 | 1980 | 1520 | 208.6 | ||||||
| DW31.5-350/110XH | 3150 | 1800 | 1350 | 190 | ||||||
| DW35--250/100X | 3500 | 1980 | 1520 | 250 | 71 | 34.6 | 108.5～144.7 | 100 | ||
| DW31.5--250/100X | 3150 | 1800 | 1350 | 65 | ||||||
| DW28--300/100X | 2800 | 1620 | 1180 | 300 | 59 | 41.5 | ||||
| DW25--300/100X | 2500 | 1450 | 1050 | 54 | ||||||
| DW22--300/100X | 2240 | 1300 | 940 | 49.5 | ||||||
| DW20--300/100X | 2000 | 1170 | 830 | 45 | ||||||
| DW18--300/100X | 1800 | 1055 | 745 | 41.5 | ||||||
| DW16--300/100X | 1600 | 940 | 660 | 38 | ||||||
| DW14--300/100X | 1400 | 830 | 570 | 34 | ||||||
| DW12--300/100X | 1200 | 720 | 480 | 30.5 | ||||||
| DW10--300/100X | 1000 | 615 | 385 | 27.5 | ||||||
| DW08--300/100X | 800 | 510 | 290 | 24 | ||||||
| DW06-300/100X | 630 | 420 | 210 | 21 |
