Fixture Building Tips
General Tips n When Manifold mounting VektorFlo ® components the mating surface must be flat within 0.08 mm, with a maximum surface roughness of 1.6 µm R a for proper sealing (unless otherwise noted in the catalog). n Fluorocarbon seals are available for most components (except power supplies) that do not include them in the device design. These items may be ordered online or on fax orders by adding an “F” as the last digit of the model number. When ordering with one of our order entry specialists, please mention that you would like fluorocarbon seals. n Unless otherwise noted in our catalog, VektorFlo ® devices require a minimum pressure of 34.5 bar (3.4 MPa) for double acting components and 51.7 (5.2 MPa) bar for single acting components. n Maximum system flow rate is 5.7 l/m for all VektorFlo ® special function valves. Excess flow voids warranty. n Deburring of pockets or cavities is extremely important to avoid leaks from damaged seals. n Fluid filtration to catch chips will prevent leaks and extend the life of your components. n Preventive maintenance is essential to keep hydraulic systems and components running at peak performance through millions of cycles. Be sure to flush your entire system at least once a year Work Support Tips n Length of thread engagement on Fluid Advance work support contact bolt determines the spring contact force. n Tighten with a six point socket only. Other types of wrenches may damage the work support. Swing Clamp Tips n Never allow swing clamp arm to contact the workpiece during arm rotation. n Use of optional bottom porting on all single acting swing clamp models may significantly reduce contamination potential. Contact your Vektek Customer Service representative for details on the bottom porting option. n Swing restrictors are available in 30°, 45° and 60° angles. Order from your Vektek Sales Representative or Order Entry Specialist. Other swing restricting angles are available upon request as a special. and more frequently in high contamination environments.
Plumbing Tips n Use of standard rubber hoses and end fittings can hamper the action of many devices due to excessive end fitting restrictions. If you choose to purchase hoses from another supplier, be sure that hose diameters and end fittings are not causing excessive restrictions. Power Supplies n To extend the life of your hydraulic pumps: * Hydraulic fluid should be changed and the reservoir cleaned out annually * If you operate a full production schedule (one shift daily): change fluid twice annually * Two shifts daily: change fluid three times annually * Three shifts: four times annually * In very dirty conditions (foundries): change hydraulic fluid monthly 1. Flow Rate : Time Requirement? SYSTEM VOLUME ÷ FLOW RATE = TIME 2. Power Supply: MANUAL, PNEUMATIC, or ELECTRIC 3. System Requirements: SINGLE ACTING, DOUBLE ACTING, n Pump Selection: Accessory Valves n The “CETOP” valve interface used on our surface mounted (manifold) valves was designed to allow mounting in only one direction. This interface has (4) fluid passages, P, T, A and B, as well as four mounting holes. The distance between the mounting holes on one end (31 mm) is not equal to the distance between the holes on the opposite end (32.5 mm). The narrower hole pattern is 21.5 mm from centerline of mounting hole to centerline of the “P” passage, while the wider hole pattern is only 19mm center to center. This non-equal mounting spacing is intended to prevent the valve from being installed incorrectly. CONTINUOUSLY COUPLED, DECOUPLED or PALLETIZED
Speed Control n Flow controls are often required to make swing clamps and work supports function at appropriate speeds. Swing clamps may be damaged by swinging large mass arms at a greater distance from the clamp centerline than recommended on the catalog pages. Work supports may advance with speed faster than expected, bounce off of the intended part surface and become locked before the spring can mechanically re-extend them. n In cases where speed control is necessary, all workholding devices should be flow controlled with “meter-in” devices like our in-line or in-port flow controls with free-flow return. Needle valves or “meter-out” flow controls, as are often used in pneumatics, should not be used to prevent a pressure intensification which may occur on “meter-out” hydraulic applications.
A-8
Arms/Levers n When installing a swing clamp arm,
restrict the arm to prevent rotational torque to the plunger and potential internal cam damage. You may then tighten the cap screw to specification without damage to your clamp.
© Vektek December 2021
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