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Longwall Top CoalCaving Roof Supports
Recover More Coal from
Thick & Ultra-Thick Seams
Controlled top-coal caving with
front and rear AFC coordination for high-recovery longwall
mining.
Top-Coal
Caving Control
Controlled rear coal release for thick-seam recovery
Front & Rear
AFC Integration
Coordinate cutting，
conveying and
caving flow
Thick-Seam
Recovery
Recover more from seams beyond single-pass
cutting height
Manual to
Smart Caving
Hydraulic or electro-hydraulic support control
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Popular Longwall Top Coal Caving Roof Supports
Reference configurations for thick and ultra-thick
coal seams.
ZF8000/20/42 Standard
LTCC Roof Support
ZF15000/28/52 Large-Mining-Height LTCC Roof Support
ZF8000/20/42 Standard LTCC
Roof Support
Quick Details
· Product Type：LTCC Roof Support
· Reference Model：ZF8000/20/42
· Working Resistance：8000 kN
· Height Class：2.0-4.2 m
· Center Distance：1500 mm
· Mining Method：Top-Coal Caving
· Rear Structure：Rear AFC
· Coal Release：Gravity Caving
· Front Conveyor：AFC System
· Rear Conveyor：AFC System
· Control：Hydraulic / Electric
· Application：Thick-Ultra-Thick Seams
Packaging & Delivery
· Poport anti-corrosion protection
· Break-bulk，bulk or flat-rack shipment
· Commissioning & technical support
Applications
· Thick-Seam Longwall
· Top-Coal Recovery
· Dual-AFC Faces
· High-Recovery Retreat Mining
自由容器
ZF15000/28/52 Large-Mining-Height LTCC Roof Support
Quick Details
· Product Type：LTCC Roof Support
· Reference Model：ZF15000/28/52
· Working Resistance：15,000 kN
· Initial Supporting Capacity：12,778 kN
· Support Height：2.8-5.2 m
· Mining Method：Top-Coal Caving
· Hydraulic Legs：High-Strength
· Impact Protection：Heavy-Duty
· Rear Caving：Optimized Window
· Front AFC：AFC System
· Rear AFC：AFC System
· Control：Electro-Hydraulic
· Duty：Heavy-Duty
Packaging & Delivery
· Export anti-corrosion protection
· Break-bulk, bulk or flat-rack shipment
· On-site commissioning & training
Applications
· Ultra-Thick Coal Seams
· Large-Mining-Height LTCC
· High-Output Longwall Faces
· Impact-Load Roof Conditions
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Custom Longwall Top Coal Caving Roof Supports
Built Around Your Coal Seam & Caving Strategy
Seam Thickness
& Cutting Height
Match top-coal
thickness and cutting
height for optimal
caving control.
Working Resistance
Configure support capacity to manage roof load and
caving pressure.
Tail Beam &
Caving Window
Design tail beam length and caving window size for effective top-coal
breakage and flow.
Front & Rear
AFC Interface
Integrate front and rear AFC systems for coordinated cutting and caving.
Caving Control
& Automation
Choose manual，
electro-hydraulic，
or automated caving
control solutions.
Wear Protection & Service
Select wear-resistant
components and
service packages for
longer life.
Successful Cases
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Longwall Top Coal Caving Roof Supports FAQ
Key answers for thick-seam longwall mining buyers
1. What are Longwall Top Coal Caving Roof Supports?
Longwall Top Coal Caving Roof Supports are hydraulic
supports designed for thick-seam mining with controlled
top coal caving.
2. Where are they used?
Longwall Top Coal Caving Roof Supports are used in
underground longwall mines with thick coal seams
suitable for top coal recovery.
3. What working resistance is available?
Longwall Top Coal Caving Roof Supports can be
configured with different working resistance levels based
on roof pressure and seam conditions.
4. What mining heights are available?
Longwall Top Coal Caving Roof Supports can be
customized for different support heights and thick-seam
mining requirements.
5. How is top coal released?
Longwall Top Coal Caving Roof Supports use tail beams
and caving windows to control the release of top coal
onto the rear conveyor.
6. Can they be customized?
Yes. Longwall Top Coal Caving Roof Supports can be customized by support height, resistance, caving window and hydraulic layout.
7. Can they use electro-hydraulic control?
Yes. Longwall Top Coal Caving Roof Supports can support electro-hydraulic control, remote monitoring and automated caving sequences.
8. What safety features are included?
Longwall Top Coal Caving Roof Supports can include pressure monitoring, overload protection, interlocks and emergency control functions.