| ROTARY AIR VALVE COUPLINGS |
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Single Station for Load/Unload
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145 psi max (Air)
FEATURES: Pneumatic coupling for rotary index tables with an independent load/unload station. Unload and reload while all other stations remain clamped. Clamps automatically at the loading station, or can be controlled with a clamping valve.
MODELS AVAILABLE: Choose from the following standard configurations — see Dimensions page for part numbers:| | 5 Stations | | | 6 Stations (also for 2 and 3 stations) | | | 7 Stations | | | 8 Stations (also for 4 stations) |
Couplings for 6 and 8 stations are used for indexing tables with 2, 3, and 4 stations by plugging unused ports. For special Rotary Valve Couplings with additional stations or special features, please contact factory.
OPERATION: One half of the Rotary Valve Coupling rotates with the index table, while the other half remains stationary. Each time the table and coupling index, a new station automatically becomes the load/unload station. The coupling supplies fluid to the loading station separately from all other stations. The loading station can be unclamped and re-clamped automatically as the coupling rotates, or controlled by a separate clamping valve.
CLAMPING AUTOMATICALLY: To automatically unclamp and re-clamp the loading station as the coupling rotates, connect the coupling's return line R directly to exhaust.
CLAMPING MANUALLY: The loading station can be unclamped and re-clamped by a hand-operated or solenoid-operated pneumatic clamping valve mounted off of the rotary table. This insures that a new work piece will not move accidentally during indexing, before it is securely clamped.
MOUNTING: Firmly fasten either the top or the bottom of the coupling using the tapped holes provided. Install a floating reaction bar to prevent the other half of the coupling from rotating. Mount coupling at the centre of rotation, either above, below, or on the rotary table.
FLUID CONNECTION: All ports are 1/4" BSPP, with 1/4" NPT adaptors furnished.
DESIGN CONSIDERATIONS: To use a standard Rotary Valve Coupling, the table must rotate through exactly the same angle during each indexing movement. Turning the coupling requires additional table-motor starting torque, especially when clamping automatically during indexing. Maximum rotational speed is 10 RPM. Although couplings are well sealed, an external cover may be necessary to protect the bearing surfaces in cases of extreme dirt and grit. |
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