Truss Systems
JENNMAR offers the mining and tunneling industries the most reliable, high-strength truss systems available. Truss systems can eliminate cribbing expense and labor.
• Utilizes the #8 threaded rebar as the horizontal tensioning member
• Used in conjunction with our #8 or #9 splice tube
• Rebar is engaged directly into an internally threaded truss shoe
• 0.6" cable (30 tons)
• Tensioned from center of entry
• Minimum components
• Can be part of primary support
• Utilizes JENNMAR’s unique J-Bar (angle bolts) for better mixing
• Fewer parts than competition
• Torque wrench to tension truss at coupler
• Eliminates cribbing
• Flexibility helps handle lateral shear
• Easily tensioned
• Custom designed for entry width
• Less cribbing needed in tailgates, reduces mine cost, and increases ventilation
• Extremely laminated conditions
• Highly fractured materials at various anchorage horizons
• Conditions that require higher stiffness with minimal roof movement
• Low profile ensures maximum floor to roof clearance
• Requires no additional tensioning devices
• Standard channels and cable bolts are used
• Short learning curve
BYTM® Thread Bar
Truss System• Utilizes the #8 threaded rebar as the horizontal tensioning member
• Used in conjunction with our #8 or #9 splice tube
• Rebar is engaged directly into an internally threaded truss shoe
BYTM® Cable Truss System
• Fast installation• 0.6" cable (30 tons)
• Tensioned from center of entry
• Minimum components
• Can be part of primary support
Sling Truss (#8 Bar or Cable)
• Economical and easy to install off the miner• Utilizes JENNMAR’s unique J-Bar (angle bolts) for better mixing
• Fewer parts than competition
Bar Sling
• Full Load Truss coupler• Torque wrench to tension truss at coupler
JMS Truss System
• Great for low seams• Eliminates cribbing
• Flexibility helps handle lateral shear
• Easily tensioned
• Custom designed for entry width
JMM Cable Truss
• System provides uplifting force to reduce roof sag• Less cribbing needed in tailgates, reduces mine cost, and increases ventilation
B-Rigid Truss
Widely used and user-friendly truss system especially in extremely adverse conditions such as:• Extremely laminated conditions
• Highly fractured materials at various anchorage horizons
• Conditions that require higher stiffness with minimal roof movement
• Low profile ensures maximum floor to roof clearance
• Requires no additional tensioning devices
• Standard channels and cable bolts are used
• Short learning curve