CV9 Master Catalog

Specifications subject to change without notice or incurring obligation 5 6-29-05 Multi-Power ® Cylinders Speed & Shock Control Using Hydraulics Option -HS Available in 2-1/2" through 12" Bore Temperature range: –25° to + 250°F Available with Viton seals Add -V Temperature range: –15° to +400°F Note!!! All 4-Stage Units 2-1/2" thru 10" Bores are rated at 120 psi maximum air input! 12" Bore, 3-Stage is rated at 130 psi max. 12" Bore, 4-Stage is rated at 100 psi max. Application Tips Two Speed & Shock Control Single air/oil tank with sequence, needle and shut-off valves give: 1. Rapid “Extend” stroke. 2. Automatic switch to controlled rate when resistance is met and pressure builds up. 3. Fluid catches cylinder when built-up forces are suddenly released (such as in punching applications), thus controlling the shock that could otherwise occur. Air supply Muffler Directional control 4-way air valve Single tank air/oil unit Shut-off – 2-way oil Multi-Power ® Cylinder Sequence valve Needle valve Always use 2-hand anti tie-down systems for operator safety! Consult your local distributor for information and product delivery 4. Automatic return to rapid rate on “Retract” stroke. One Speed Circuit Single air/oil tank and flow control valve give hydraulic control with speed control on “Extend” stroke with rapid rate on “Retract” stroke. Air supply Muffler Directional control 4-way air valve Single tank air/oil unit Flow control Multi-Power ® Cylinder See chart When Multi-Power ® cylinders are applied to applications such as punching or shearing, high inertial and impact forces are often encountered. To capture these potentially destructive forces, and prevent possible damage to tooling and cylinder specify Option –˙HS. The seals on the piston, piston rod and tube are increased in the single return stage (retract or extend) and fluid is used to control speed and shock. Fluid from an air-over-oil tank is used for the return media. This fluid passes through a resistance, such as a flow control, which provides speed control of the cylinder. When the material shears and the cylinder tries to complete its stroke, the non-compressible fluid resists rapid movement, providing shock and speed control. Note the circuits shown below. For less fluid restriction and larger plumbing on 2-1/2" through 6" bores, see the 1/2 NPT porting options –TF, –TR, and –TFR on page 5.10. Also for 10" & 12" bores, 3/4 NPT Port Option -P34 is available. See page 5.10. Note!! The fluid pressure in the return stage is limited to 500 psi. This dictates that all 4-stage units thru 10" bore be limited to 120 psi maximum air input! 12" bore, 3 stage units are limited to 130 psi; 4 stage units are limited to 100 psi. Use when smooth, rigid, and precision speed control is required. Also with applications such as punching, shearing, setting blind rivets, etc., where high forces are built up and then released very quickly. The fluid, being incompressible, “catches” these forces, both static and dynamic, dissipating them before the cylinder reaches the end of its stroke – and before the piston can pound on the piston stop. 1/2 NPT Porting is available for 2-1/2", 3", 4", 5", & 6" Bores; 3/4 NPT Porting is available for 10" & 12" Bores Additional Tube Seal, O'Ring Additional Piston Seal, Polypak ® Standard Piston Seal, O'Ring Thicker Piston Standard Rod Seal, O'Ring Additional Rod Seal, Polypak ® SAE 660 Bronze Bushing The Polypak® seals combine an automatic lip seal with an O'spring energizer for excellent sealing from 0 to 500 psi. Series MP MLR, MLS Bore 2-1/2", 3", 4" 5" 6" 8" 10", 12" Bore 2, 2-1/2", 3", 4 Add to “A” Pg 5.5 & 5.6 0.50" 0.25" 0.50" 0.25" 0.00" Add to “B” Pg 5.24 0.50" 5.11