Safety instructions symbols
The symbols "Caution", "Warning" and "Danger" indicate hazard levels.
DANGER - Imminent danger, will result in death or serious injury
WARNING - Danger, can result in death or serious injury
CAUTION - Risk of minor injury if not observed
Safety precautions
Safety instructions
- Before using the product, please read the user manual thoroughly and follow the safety rules.
- Keep this manual in a safe place for future reference.
- Do not modify, disassemble, or assemble the product arbitrarily.
- Observe the conditions of use specified on product's label or instruction.
- Operate, install, and disassemble product after confirming the safety of the surrounding conditions.
- For use in unspecified conditions or environments, we recommend that you thoroughly review safety measures and consult with us.
Qualifications of professional personnel
- We recommend handling by a person with sufficient knowledge and experience about the product.
- The person who determines the design or specifications of the system should determine whether the product is suitable for use.
Warranty and disclaimers
- For standard products, the warranty period is applied within 1 year from the date of use or within 18 months after delivery, whichever comes first.
- During the warranty period, if a failure or damage is clearly attributable to our company, we will provide a replacement/necessary replacement part, and we will not bear any additional loss. Warranty here means the warranty for our products, and any other damage caused by the failure of the product is excluded from the scope of the warranty.
Specifications
- Sizes: 46x46, 64x64, 80x80, 130x130, 150x150 mm
- Max. Stroke: 1,000 mm (varies by product size)
- Motor combination: Series (coupling), parallel (timing belt)
- Cylinder mounting: Shear flange, rear endflange, bottom foot, clevis, guide attachment, trunnion, bottom mounting
- For detailed specifications by cylinder size, please refer to the full catalog (KEC).
Assembly and Disassembly
Precautions before Installation
- The operating load of a motorized cylinder varies depending on the speed and the specification of the screw.
- While the rod is operating, make sure there is neither impact nor lateral load from an impact.
Use a limit sensor whenever possible. When the damper returns to the home position, the torque load rate of the home position mode must be set to the minimum.
- A motorized cylinder must be used only for a thrust.
- Since there are no LMs or guiding devices inside a motorized cylinder, you must not totally rely on the straightness and lateral loads of a motorized cylinder alone.
- An LM or a rod guide must be installed on the working part at the end of the rod.
- If only a motorized cylinder is used, the sagging of the rod may cause damage to the components or instruments inside.
- When a rod rotation prevention type is used, make sure there is no rotating torque applied to the rod.
A rod rotation prevention type is an instrument for preventing rotations of the rod in free state. If rotating torque or impact beyond the limit is applied, the instrument that prevents rotations can be damaged.
- When attaching the forward part plate laterally, make sure the plate does not sag. If the plate sags during lateral attachment, vibration or noise may occur. The precision and product service life can be adversely affected depending on the level of sagging.
- Measures to prevent lateral loads on the cylinder rod.
- Install a separate guide so that no arbitrary lateral load is applied to the cylinder rod.
- If there is lateral load, a deformation may compromise the performance or damage the nuts or screws and cause abnormal noise, etc. It can also be detrimental to the service life of the product.
- When using the product at high speed, adjust the acceleration and deceleration periods.
When using the product at high speed (2,000 rpm or higher), noise and vibration may occur due to the resonance of the screw depending on the lead value of the screw. Therefore, adjust the acceleration and deceleration periods to use the product in the domain where there is no vibration.
- When mounting the product, align the center of the rod and the center of the opposing work.
When assembling a motorized cylinder, the product may malfunction if the center of the rod within the operation range and the work are not aligned in terms of the position of the center or the angles. In this case, noise or increased load rate of the motor may occur.
Assembly
- Apply Loctite on the ① bolt of the motor bracket and assemble it temporarily. (The motor bracket ⑧ must be able to move up and down.)
- Assemble the body side pulley ② (set screws) and the motor ⑨ and the motor pulley ③ according to the gap ④.
- Insert 9 and 3 along with the belt ⑤ and attach the bolts ⑥.
- Make sure the bolt is fully tightened.
Disassembly
- Disassemble the motor and the bracket using a tool.
- Detach the bearing housing and take out the rod unit from the motorized cylinder.
Greasing
- Perform initial injection of grease on the grease inlet using a grease gun.
- In the case of ball screws without a grease inlet, apply a sufficient amount of grease on the surface of the ball screws.
Maintenance
- For the maintenance work of the product, be sure to take safety measures such as cutting off power and fixing the work before commencing maintenance.
- Take caution to avoid injuries caused by rotating parts or falling of the work or instrument.
- Conduct regular maintenance work.
- Frequent inspections
Visual inspection: Dents, scratches, rusting, loose bolts, conditions of cables, wear, etc.)
Noise: Noise of the motor in operation, noise coming from the ball screw when in action, abnormal noise from the belt, etc. - Inspections every six months or after 300 km
Inspect the belt for gap or wear.
- Frequent inspections
- Other inspection items
In the case of a parallel motorized cylinder, the tension of the belt or the belt’s wear may undermine the precision or cause noise. Therefore, inspect these parts frequently and replace the belt if necessary.
Failures and measures
Malfunctioning
When there is positional variance of 1 mm or higher.
Check if the end of the rod is loosened.
If the end joint of the rod is connected to the freely rotating rod type, the rod can rotate freely to create positional variances.
- The freely rotating rod type must be fixed so that the rod would not rotate.
Malfunctioning
Cylinder does not work.
Check if the motor is over loaded.
- When activating the motor, check the load rate of the motor on the motor drive. (Normal range: Less than 100%.)
Check the assembly of the coupling of the motor and the motorized cylinder. If they are in parallel, remove the pulley cover and check the status of the pulley.
- Check if the ball screw has been damaged due to an impact during the test run.
Malfunctioning
Malfunctioning of Auto Switch
When the Auto Switch is energized, the energizing current must be 50 mA or less.
Check for noise or electro-magnetic field in the operating environment.
If the lead line of the Auto Switch is too long (5 m or longer), install a filter, etc.
Noise
Abnormal noise while the product is in operation.
Check if the centers of the cylinder and the work are aligned.
- If the centers are not aligned, the ball screw can get bent and cause noise from the inside.
- For the assembly of the motorized cylinder rod, assemble with the work when it is retreated all the way.
Make sure that the center of the motorized cylinder and the center of the rod are aligned.
The contents in this manual are subject to change without notice.
For additional information, please visit our web site or contact us.
For additional information, please visit our web site or contact us.
Doc# :
PUM-WK-KEC-2412
