Introduction

Mine Hydraulic Propeller is a hydraulic support device used to temporarily support roofs in underground mining.

Features

1.Easy Operation

Lifting and unloading are completed by operating the hydraulic control valve.

2.Strong Support Force

Rated working resistance up to 300–850 kN, controlled through

hydraulic pressure.

Applications

1.Roof Support in Longwall Working Faces

Used to support the roof in coal mine longwall extraction operations.

2.Roadway Support for Tunneling

Applied to sustain roof and sidewalls in underground roadway excavation.

3.Temporary Support During Maintenance

Used for temporary roof support during underground repair or maintenance tasks.

Company Service

1.Pre-sale & On-site Guidance

Free support for model selection and basic solution planning based on site conditions.

2.Operation Training

Hands-on training covering structure, operation steps, and key use points of hydraulic props.

3.Field Demonstration

On-site operation demonstrations to ensure correct use before full deployment.

4.Local Service Coverage

Dedicated service staff assigned by sales region, with on-site offices where required.

FAQ

Q1: What is the typical delivery lead time?

Lead time depends on model and order volume; standard models are usually faster.

Q2: 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.

Q3: Do you have a safety certificate for your products?

Our products have a national certification safety certificate.

Q4: Do you support bulk or long-term supply projects?

Yes. We support stable batch supply for ongoing mining projects.

Q5：Which mining scenarios are your props mainly used for?

Longwall faces, roadway support, and temporary roof support.

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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)	Work liquid
DW45--250/110X	4500	2520	1980	250	109	28.3	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	300	67	34
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