Vacuum Pad
Vacuum Pad Bellows Type (-S3 spec.)
Best suitable for conveying retort packaging or bags for packaged foods.
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No copper-based metallic material is used in flow paths
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HNBR or FKM is used for the seal rubber material. *Some products are only compatible in the flow path.
Advantages
Best suitable for conveying retort packaging or bags for packaged foods.
Best suitable for conveying retort packaging or bags for packaged foods.
Wide selection of pad sizes, materials and holder types.
Resin attachment for Bellows pad is available for applications where suction marks from rubber pad is unfavorable.
Best suitable for transporting of glass, painting process and taking-out molded parts with excellent followability to inclined work-piece with less marks.
Stroke length of spring type holder can be selected.
Conventional long stroke holder (with cover) is integrated into VPC or VPD.
Stroke:3, 6, 10, 15 and 20mm
Conventional long stroke holder (without cover) is renewed as VPOC or VPOD.
Stroke:20, 30, 40 and 50mm
The pad holder requiring for applications of "No copper alloy" and "Low-level ozone resistance" is available.
-S3 spec.:Non copper alloy is used for metal parts and HNBR or FKM is used for seal materials.
Soft types are recommended for the food industry.
Extra soft silicone pad for food industry.Food-safe Act and FDA compliant .
The Fiber surface type reduces adsorption marks on the workpiece thanks to the fibers on the surface of the pad.
The Fiber surface type reduces adsorption marks on the workpiece thanks to the fibers on the surface of the pad.
DLC. coating type uses a special coating on the surface of the vacuum pad to prevent sticking to the workpiece.
DLC. coating type significantly improves slipperiness. Effective in reducing adsorption marks and preventing sticking of lightweight and thin workpieces.
Pad surface treatment for minimizing suction marks on workpieces is available as an option.
Specifications
Pad material
| Material | Silicone rubber, Urethane rubber, Fluoro rubber, Conductive silicone rubber, HNBR, EPDM |
|---|
*1. The Conductive silicone rubber is a silicon rubber capable of releasing static electricity. (Volume resistance:Exceed 200Ω·cm, 1x105Ω·cm or less)
*2. Pad size φ2mm is available only with Nitrile rubber (N) and Silicone rubber (S), and φ2mm is available only with Nitrile rubber (N), Silicone rubber (S) and Conductive silicone rubber (SE).
Holder type
| Fixed type, Top port | VPA(Standard) |
|---|---|
| Fixed type, Side port | VPMB(Mini)/VPB(Standard) |
| Fixed type, Direct mount | VPME(Mini)/VPE(Standard) |
| Spring type, Top port | VPSC(Slim)/VPC(Standard) |
| Spring type, Side port | VPMD(Mini)/VPD(Standard) |
| Spring type, Direct mount | VPF |
Port size
Pad size(mm)
| Pad size | φ2, φ4, φ6, φ8, φ10, φ15, φ20, φ25, φ30, φ40, φ50, φ60, φ80, φ100 |
|---|
* Pad size ø2 and ø4mm cannot be mounted on holder type mini (MA, MB, MC, MD, ME) type.
Port tube dia.
| Push-in fitting (mm) | φ4, φ6 |
|---|---|
| Barb fitting (tube O.D. x I.D. (mm) | φ3×φ2, φ4×φ2.5, φ6×φ4 |
* Available joint size differs depending on the holder type.
Port thread size
| Metric female thread | M3×0.5, M5×0.8, M6×1 |
|---|---|
| Parallel pipe female thread | G1/8 |
| Male thread | M3×0.5, M5×0.8 |
* Available joint size differs depending on the holder type.
Theoretical Suction Force Graph
Ordering Information
Model designation (example)
Detailed Safety Instructions
Warning
1.Be sure to use our Vacuum Pad Bellows Type as the pad rubber to attach the Mark-free Resin Attachment. If the shape of the Resin Attachment and pad rubber is not appropriate, Resin Attachment may come loose or leak a large amount.
Caution
1.For the bellows type pads, use the allowable pressing stroke in the dimension table as a guide, do not crush the bellows too much. Excessive crushing may cause premature wear of the bellows, cracking of the lip, and deformation due to strain, which may result in suction failure.
2.When selecting a product, pay attention to the following points and perform the suction test on the actual application. (1) Due to the characteristics of the material, the bellows may stick to each other and deform depending on the usage conditions. (2) Since the lip of the Mark-free Resin Attachment is made of hard resin, it reduces suction marks compared to rubber vacuum pads, but it does not completely prevent suction marks. The degree of reduction of suction marks varies depending on the environment and the workpiece. (3) Compared to rubber vacuum pads, the Mark-free Resin Attachment has a significant effect on suction performance due to leakage from the suction surface. Ensure that the flow rate of the vacuum source is as large as possible. Also, it cannot be used to hold a vacuum.
3.Be sure to clean the suction surface of the vacuum pad before use. Deposits may remain as suction marks. When cleaning, be careful not to scratch the suction surface, and do not use organic solvents.
4.Select a pad rubber material suitable for the operating conditions to install the Mark-free Resin Attachment.
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.
