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Balance Rams &Canopy Control Jacks
Precise canopy positioning for stable longwall roof control.
Hydraulic cylinders engineered for canopy attitude, shield geometry and forepole
control.
Canopy Angle
Control
Maintain effective
roof contact
Stable Load
Distribution
Support canopy
and shield geometry
Forepole &
Canopy Control
Actuate canopy and flipper mechanisms
High-Cycle
Reliability
Mining-duty seals
and plated surfaces
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Popular Balance Rams & Canopy Control Jacks
Reference configurations for canopy attitude，shield geometry and forepole control
BR-125/90-350
Balance Ram
CCJ-140/100-450 Heavy-Duty Canopy Control Jack
BR-125/90-350 Balance Ram
Quick Details
· Product Type：Roof Support Balance Ram
· Function：Canopy-Shield Balance Control
· Action：Double Acting
· Mounting：Pin/Clevis
· Rod Surface：Mining-Duty Plating
· Sensors：Optional
Packaging & Delivery
· Capped hydraulic ports
· Anti-corrosion rod protection
· Wooden case or steel pallet
Applications
· Standard shield supports
· Replacement balance rams
· Roof support remanufacturing
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CCJ-140/100-450 Heavy-Duty Canopy Control Jack
Quick Details
· Product Type：Canopy Control Jack
· Function：Canopy / Forepole Position Control
· Action：Double Acting
· Mounting：Heavy Pin/Clevis
· Holding Valve：Optional
· Position Sensor：Optional
Packaging & Delivery
· Full retraction for shipment
· Protected pin bores and rod
· Export frame or wooden case
Applications
· High-seam roof supports
· Telescopic canopy systems
· Replacement and retrofit
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Custom Balance Rams & Canopy Control Jacks
Built around your canopy geometry and
support kinematics.
Bore, Rod &
Force
Cylinder Bore .
Rod Diameter .
Push / Pull
Requirement
Stroke &
Canopy Angle
Required Stroke .
Canopy Rotation ·
Min / Max Position
Mounting &
Pin Geometry
Pin Diameter ·
Clevis Width ·
Pivot Locations
Hydraulic Circuit& Holding
Supply Pressure .
Check /Holding Valve · Relief Strategy
Seals & Surface
Protection
Rod Seal - Wiper .
Corrosion-Resistant Plating
Sensors &
Testing
Stroke Sensor . Position Feedback · Pressure /
Cycle Testing
Successful Cases
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Balance Rams & Canopy Control Jacks FAQ
Key answers for powered roof support manufacturers
and maintenance buyers.
1. What are Balance Rams & Canopy Control Jacks?
Balance Rams & Canopy Control Jacks are hydraulic cylinders used to control canopy position, angle and support balance.
2. Where are they used?
Balance Rams & Canopy Control Jacks are used in hydraulic roof supports and underground longwall mining systems.
3. What bore sizes are available?
Balance Rams & Canopy Control Jacks can be customized with different bore and rod diameters.
4. What stroke lengths are available?
Balance Rams & Canopy Control Jacks can be designed with different strokes to match canopy movement requirements.
5. What working pressures are available?
Balance Rams & Canopy Control Jacks can be configured for different hydraulic pressures and operating forces.
6. What mounting options are available?
Balance Rams & Canopy Control Jacks can use different pin, clevis and mounting geometries.
7. What sealing options are available?
Balance Rams & Canopy Control Jacks can use heavy-duty seals and wear-resistant surface protection for mining conditions.
8. Can they be customized?
Yes. Balance Rams & Canopy Control Jacks can be customized by bore, stroke, force, mounting and hydraulic interface.