自由容器
Chock-ShieldRoof Supports
Four-leg stability for
demanding longwall
roof conditions.
Four-Leg Load Sharing
Distribute roof loads across front and rear hydraulic legs.
Larger Roof Coverage
Broad canopy geometry forre liable roof-bearing contact.
Hard & Broken Roof
Control
Designed for demanding and variable roof conditions.
Stable Longwall Advance
Hydraulic push-pull systems support controlled face advancement.
自由容器
Popular Chock-Shield Roof Supports
Reference configurations for demanding longwall
roof conditions
ZZ6000/16/26 Four-Leg
Chock-Shield Roof Support
ZZ7600/18/38 Heavy-Duty Chock-Shield Roof Support
ZZ6000/16/26 Four-Leg Chock-Shield Roof Support
Quick Details
· Four-leg chock-shield architecture
· Up to 6000 kN resistance
· 1600-2600 mm nominal height class
· Hard / broken roof application
· Hydraulic advance system
Packaging & Delivery
· Export anti-corrosion protection
· Break-bulk / bulk / flat-rack shipment
· Hydraulic inspection before dispatch
Applications
· Medium-seam longwall
· Hard roof faces
· Broken roof control
· High-duty production faces
自由容器
ZZ7600/18/38 Heavy-Duty Chock-Shield Roof Support
Quick Details
· Heavy-duty four-leg support
· 7600 kN resistance
· Designed for inclined / complex faces
· Hydraulic advancement
· AFC integration
Packaging & Delivery
· Protected cylinders and valves
· Bulk / break-bulk shipment
· Commissioning support available
Applications
· Inclined longwall faces
· Variable roof conditions
· Medium-to-thick seams
· Automated longwall systems
自由容器
Custom Chock-Shield Roof Supports
Configure four-leg support geometry，working resistance，
canopy coverage and control system around your actual
seam，roof and production conditions.
Seam Height &
Mining Range
Low / Medium /
Thick Seam
Working
Resistance &
Load Sharing
Roof Load · Front /
Rear Leg Balance
Canopy & Shield Geometry
Canopy Coverage ·
Gob Shield
Four Legs &
Hydraulics
Front / Rear Legs .
Pressure Setting
Control &
Automation
Manual Hydraulic .
Electro-Hydraulic
Stability & Wear
Protection
Anti-Slip · Anti-Topple · Wear Protection
Successful Cases
自由容器
Chock-Shield Roof Supports FAQ
Key answers for longwall mining buyers
1. What are Chock-Shield Roof Supports?
Chock-Shield Roof Supports are hydraulic longwall
supports that combine chock stability with shield-style
roof protection.
2. Where are they used?
Chock-Shield Roof Supports are used in underground
longwall mining under medium to heavy roof conditions.
3. What working resistance is available?
Chock-Shield Roof Supports can be configured with
different working resistance levels based on roof pressure
and mining conditions.
4. What seam heights can they support?
Chock-Shield Roof Supports are available for different
mining heights and coal seam ranges.
5. How many hydraulic legs are used?
Chock-Shield Roof Supports commonly use four-leg
hydraulic configurations for stable load sharing.
6. Can they be customized?
Yes. Chock-Shield Roof Supports can be customized by
support height, resistance, center distance and hydraulic
layout.
7. Can they use electro-hydraulic control?
Yes. Chock-Shield Roof Supports can support electro-
hydraulic control and longwall automation systems.
8. What safety features are included?
Chock-Shield Roof Supports can include pressure
monitoring, overload protection, interlocks and
emergency control functions.