Vacuum Pad
Multiple Pad Holder
Suppresses the runout of work-piece during conveyance.
Advantages
Suppresses the runout of work-piece during conveyance.
Using plural pad stabilize the posture of the work-piece during conveyance.
By using 3 to 4 pads (suctioning at multiple points), it is possible to suppress runout of the work-piece and stabilize the posture during conveyance, so the work-piece can be prevented from falling.
Vacuum filter is incorporated.
Removes the suctioned dusts and prevent the troubles of vacuum system.
Light-weight.
Aluminum is adopted for the body material.
Even a hollow work-piece can be easily suctioned.
Ordering Information
Detailed Safety Instructions
Warning
1.Perform regular maintenance and inspection of the filter element inside this product. Clogging of the element may result in poor performance or trouble.
2.When replacing the element, be sure to understand the instructions of the dust removal method and the replacement element of vacuum filter, and make sure that the internal pressure of the multiple pad holder is released to atmospheric pressure before replacement to ensure safety. When tightening, use an appropriate tool and tighten the body fixing screw with a torque of 1.0 to 1.8 Nm.
3.For blank holder (no thread holes), perform additional threads working under the following conditions. (1) Perform additional threads working within the øD dimension range. (2) The length of the male thread to be attached to the additionally worked female thread should be 6 mm or less to avoid interference with the element. (3) Remove the upper part of the holder by loosening the bolts before carrying out additional processing, then reassemble it to the original state after processing by following the procedure for replacing the element.
Caution
1.When mounting the multi-pad holder, refer to the tightening torques in the following table and tighten using the hexagonal-column of the thread with the appropriate tool, making sure there is no looseness. Check the thread looseness periodically, and retighten it to the tightening torque if necessary.
2.When installing or replacing pads, check "Common Safety Instructions for Vacuum Pads".
3.When inserting the tool into the pad screw hexagonal hole, please do not insert the tool too far. It may pierce to the internal filter element and cause damage.
Frequently Asked Questions for Vacuum Pad Series
The highest operative temperature limit depends on the pad material. For Urethane rubber's highest operative limit is 60℃, nitrile rubber's 110℃, and fluorine rubber's 230℃. (For the other rubber materials' highest limits, please refer to our catalogue.)
The above highest operative temperature limit is for only instant use. When the product is used under the highest operative temperature limit for a certain length of time, careful attentions are necessary.
Request of spring force change will be treated as a special order request in PISCO. Please contact your nearest sales office.
*) Please note that we cannot always meet a request of changing the spring force.
Yes, they are.
For the standard holder types such as VPC and VPD, the key way machined on the shaft gets fit with the rotation-lock thread so that it prevents the shaft rotation.
For small sized pad holders such as VPMC and VPMD, shaft itself is hexagonally machined which prevents rotation.
It is possible to minimize suction force decline of a vacuum pad by installing a fall prevention valve on multiple vacuum pads even when there are un-sucking pads.
The fall prevention valve, however, does not completely shut down the air circuit and it sucks a little amount of air. Depending on the number of un-sucking pads, required vacuum for the air circuit may not be achieved.
Besides, in case of sucking one work peace by multiple Vacuum Pads, even when the fall prevention valve can reduce vacuum decline, there is still a possibility that the work peace loose the balance so that the sucking Vacuum Pads may be released.
Please refer to the following "pad inner diameter" of the pad rubber to be attached.
| Pad size | Pad inner diameter |
|---|---|
|
φ1mm |
φ0.5mm |
|
φ2mm |
φ0.6mm |
|
φ3mm |
φ0.8mm |
|
φ4mm |
φ1.2mm |
|
No pad rubber (pad holder only) |
φ1.6mm |
*) Adsorbable up to this pad diameter
The inner diameter of the pad holder itself of the Air Pincette is φ1.6 mm, but since the pad diameter φ1 to 4 mm mentioned above has a smaller pad inner diameter than that, it is possible to adsorb workpieces of φ1.6 mm or less as shown in the above figure.
The pad inner diameter of the pad size φ6, 8 mm is larger than the pad inner diameter of the holder, so it is suitable for φ1.6 mm or more.
It is a dimensional calculation to the last, and may differ depending on the workpiece to be adsorbed. Ultimately, we ask you to judge the actual machine.
There are two ways of measuring pressure, absolute pressure and gauge pressure.
Absolute pressure
Absolute pressure is zero-referenced against a perfect vacuum.
It is commonly used to measure flow rate.
When indicated, "abs" is inserted following the unit, for example 10 kPa abs.
Gauge pressure
Gauge pressure is zero-referenced against ambient air pressure.
It indicate how much pressure per １cm2 is against the ambient air pressure. It is commonly used for indication of manometer. When the pressure is over the ambient air pressure, it is called "positive pressure" and when it is under the ambient air pressure, it is called "negative pressure."
Inquiries about this product
It is also possible to suggest products suitable for various conditions such as applications and functions. Please feel free to contact us or visit the nearest sales office.
The following are frequently asked questions. Please check before making inquiries.