ZLJ-30 airborne temporary support device
Negotiable
China
East of Hengfeng Road, Zoucheng City, Jining City, Shandong Province (Inside the Mechanical and Electrical Industrial Park of Zhongxindian Town)
+86 13181477730
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Product Introduction

Product Introduction:

This product adopts a three-stage telescopic arm for the lifting operation of the support frame. The base of the support frame is controlled by a transverse angle-adjusting hydraulic cylinder and front and rear rotating hydraulic cylinders, allowing for a leveling adjustment between 3m to 4m. It offers excellent top contact effect and is suitable for rectangular, arch, and trapezoidal tunnels.

Technical Features:

High support strength, with a rated working resistance of up to 30kN.

Good synchronization of the single main arm extension, high structural reliability, and low failure rate.

The support frame is controlled by an angle-adjusting hydraulic cylinder, allowing the left and right swinging angle to reach ±25°.

The front and rear flipping of the support frame is controlled by a longitudinal rotating hydraulic cylinder, making it safe and convenient for securing the anchor mesh.

The support frame can extend laterally and forward, providing a large top contact area.

Load-sensitive control is used, offering high control precision.

Product Parameters

Project

Unit

Parameter Value

Rated support force

kN

30

Rated flow

L/min

50

Rated pressure

MPa

20

Horizontal swing angle of main arm

°

0 to 120±5

Full length range of main arm

mm

1120~2390

Max inclination angle of top frame

°

25±2

Applicable roof horizontal dip angle

°

<25

Primary telescopic stroke

mm

660

Secondary telescopic stroke

mm

610

Distance beyond TBM gun head

mm

300~1500

Applicable tunnel cross-section

-

Rectangle, Trapezoid, Arch