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V-WEH41 / V-WEH42 Rear-Port Spring-Loaded Vacuum Cup Assemblies, 6–80 mm

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V-WEH41 / V-WEH42 Rear-Port Spring-Loaded Vacuum Cup Assemblies, 6–80 mm
Model
Quantity

V-WEH41 / V-WEH42 Rear-Port Spring-Loaded Vacuum Cup Assemblies

Quick selection: choose the cup material, then a diameter that fits a clean flat sealing area, then the spring stroke and rear-port thread group. This guide helps you make a first selection from 100 configurations.

Quick Model Finder - Start Here

Step What to check How to select
1. Surface Is the contact area flat, smooth, clean and non-porous? Glass, polished metal and sealed plastics are typical starting points. Test rough, porous, wet, oily, dusty or strongly curved surfaces.
2. Cup material Which elastomer suits the workpiece and process? V-WEH41 = black nitrile rubber. V-WEH42 = white silicone rubber. Confirm compatibility with temperature, cleaning fluids and process media.
3. Cup diameter How much uninterrupted flat sealing area is available? Choose the largest cup that fits without crossing an edge, hole, rib or curved area.
4. Spring stroke How much part-height variation must the tool absorb? Choose enough stroke to retain travel margin throughout the cycle. Stroke provides compliance; it does not increase holding force.
5. Rear-port thread Which mating thread and package clearance are required? Match the M9, M11, M14 or M16 group below and confirm the selected model drawing before ordering.

Reference Handling Mass per Cup

For quick first sizing only: clean, flat, fully sealed and stationary workpiece; actual vacuum at the cup = -60 kPa; 4:1 planning factor. These values are not certified safe working loads or measured product ratings. Use a larger safety factor and validate the final tool for acceleration, vibration, side load, leakage, porous surfaces or long dwell time.

Cup diameter Reference handling mass per cup*
6 mm 40 g
8 mm 80 g
10 mm 120 g
15 mm 270 g
20 mm 480 g
25 mm 750 g
30 mm 1,080 g (1.08 kg)
35 mm 1,470 g (1.47 kg)
40 mm 1,920 g (1.92 kg)
50 mm 3,000 g (3.00 kg)
60 mm 4,330 g (4.33 kg)
70 mm 5,890 g (5.89 kg)
80 mm 7,690 g (7.69 kg)

*The reference is calculated from nominal cup diameter at a perfect seal and -60 kPa, divided by four. It is not a certified safe working load, a measured holding-force value or a substitute for your own application test.

Available Sizes, Strokes and Rear-Port Groups

Rear-port thread group Available cup diameters Listed spring strokes
M9 6, 8 mm 3, 10, 15, 25 mm
M11 10, 15, 20 mm 4, 10, 20, 30 mm
M14 25, 30, 35, 40, 50 mm 6, 15, 30, 50 mm
M16 60, 70, 80 mm 10, 30, 50 mm; 80 mm also has 70 mm stroke

Model-code example: V-WEH41-d30-15 means black nitrile rubber, 30 mm cup diameter, 15 mm listed spring stroke and M14 rear-port group. V-WEH42-d80-70 means white silicone rubber, 80 mm cup diameter, 70 mm listed spring stroke and M16 rear-port group.

Fast FAQ

Question Short answer
Can I use a rough, porous, wet or oily surface? Not without a representative test. Surface leakage and contamination can reduce holding force substantially.
Does a longer spring stroke hold more weight? No. Stroke compensates for height variation. Holding performance is governed mainly by seal quality, cup area and actual vacuum.
Can I use one cup only? Only after your final tool has passed a full application test. Use multiple cups and a retention method where failure consequences require it.
What must I test before production? Measure vacuum at the cup, pickup time, release time, vacuum decay, payload margin and repeatability with the real part, hose, valve and cycle speed.

Engineering Check Before Production

  • Keep the sealing zone clean, dry and free of loose dust, release agent, oil film and moisture.
  • Avoid side load and peeling load. Reduce payload for acceleration, vibration, impact, uneven contact and long dwell time.
  • Keep travel margin in the spring and prevent bottoming out.
  • For a theoretical check only: Fideal = Delta P x Aeffective, where A = pi x D2 / 4. Use the actual vacuum at the cup, not the pump nameplate value.
  • No universal temperature, humidity or chemical limit is claimed here. Confirm elastomer compatibility in the actual process.

Need help? Send us the workpiece material and finish, mass, usable flat sealing area, orientation, cycle acceleration, actual vacuum level, required thread, expected height variation and process temperature/chemicals. We can help narrow the correct V-WEH41 or V-WEH42 configuration.

Always confirm the selected model code and model drawing before ordering. Original product images and model-specific drawings remain unchanged.

 

Model / configuration / SKU

V-WEH41 / V-WEH42 Rear-Port Spring-Loaded Vacuum Cup Assemblies, 6–80 mm
Model / configurationSKU
V-WEH41-d6-3 – Black Double-Layer, M9 Rear Port 5430664623809
V-WEH42-d6-3 – White Double-Layer, M9 Rear Port 5430664623816
V-WEH41-d6-10 – Black Double-Layer, M9 Rear Port 5430664623811
V-WEH42-d6-10 – White Double-Layer, M9 Rear Port 5430664623813
V-WEH41-d6-15 – Black Double-Layer, M9 Rear Port 5430664623829
V-WEH42-d6-15 – White Double-Layer, M9 Rear Port 5430664623821
V-WEH41-d6-25 – Black Double-Layer, M9 Rear Port 5402065733707
V-WEH42-d6-25 – White Double-Layer, M9 Rear Port 5402065733708
V-WEH41-d8-3 – Black Double-Layer, M9 Rear Port 5430664623812
V-WEH42-d8-3 – White Double-Layer, M9 Rear Port 5430664623814
V-WEH41-d8-10 – Black Double-Layer, M9 Rear Port 5430664623810
V-WEH42-d8-10 – White Double-Layer, M9 Rear Port 5430664623815
V-WEH41-d8-15 – Black Double-Layer, M9 Rear Port 5430664623830
V-WEH42-d8-15 – White Double-Layer, M9 Rear Port 5430664623822
V-WEH41-d8-25 – Black Double-Layer, M9 Rear Port 5402065733709
V-WEH42-d8-25 – White Double-Layer, M9 Rear Port 5402065733710
V-WEH41-d10-4 – Black Double-Layer, M11 Rear Port 5430664623797
V-WEH42-d10-4 – White Double-Layer, M11 Rear Port 5430664623806
V-WEH41-d15-4 – Black Double-Layer, M11 Rear Port 5430664623802
V-WEH42-d15-4 – White Double-Layer, M11 Rear Port 5430664623798
V-WEH41-d20-4 – Black Double-Layer, M11 Rear Port 5430664623799
V-WEH42-d20-4 – White Double-Layer, M11 Rear Port 5430664623804
V-WEH41-d10-10 – Black Double-Layer, M11 Rear Port 5430664623805
V-WEH42-d10-10 – White Double-Layer, M11 Rear Port 5430664623801
V-WEH41-d15-10 – Black Double-Layer, M11 Rear Port 5430664623800
V-WEH42-d15-10 – White Double-Layer, M11 Rear Port 5430664623803
V-WEH41-d20-10 – Black Double-Layer, M11 Rear Port 5430664623807
V-WEH42-d20-10 – White Double-Layer, M11 Rear Port 5430664623808
V-WEH41-d10-20 – Black Double-Layer, M11 Rear Port 5430664623831
V-WEH42-d10-20 – White Double-Layer, M11 Rear Port 5430664623823
V-WEH41-d15-20 – Black Double-Layer, M11 Rear Port 5430664623832
V-WEH42-d15-20 – White Double-Layer, M11 Rear Port 5430664623824
V-WEH41-d20-20 – Black Double-Layer, M11 Rear Port 5430664623833
V-WEH42-d20-20 – White Double-Layer, M11 Rear Port 5430664623825
V-WEH41-d10-30 – Black Double-Layer, M11 Rear Port 5581986839285
V-WEH42-d10-30 – White Double-Layer, M11 Rear Port 5581986839286
V-WEH41-d15-30 – Black Double-Layer, M11 Rear Port 5581986839287
V-WEH42-d15-30 – White Double-Layer, M11 Rear Port 5581986839288
V-WEH41-d20-30 – Black Double-Layer, M11 Rear Port 5581986839289
V-WEH42-d20-30 – White Double-Layer, M11 Rear Port 5581986839290
V-WEH41-d25-6 – Black Double-Layer, M14 Rear Port 5412910537447
V-WEH42-d25-6 – White Double-Layer, M14 Rear Port 5412910537448
V-WEH41-d30-6 – Black Double-Layer, M14 Rear Port 5430664623785
V-WEH42-d30-6 – White Double-Layer, M14 Rear Port 5430664623792
V-WEH41-d35-6 – Black Double-Layer, M14 Rear Port 5412910537449
V-WEH42-d35-6 – White Double-Layer, M14 Rear Port 5412910537450
V-WEH41-d40-6 – Black Double-Layer, M14 Rear Port 5430664623787
V-WEH42-d40-6 – White Double-Layer, M14 Rear Port 5430664623793
V-WEH41-d50-6 – Black Double-Layer, M14 Rear Port 5430664623788
V-WEH42-d50-6 – White Double-Layer, M14 Rear Port 5430664623794
V-WEH41-d25-15 – Black Double-Layer, M14 Rear Port 5412910537451
V-WEH42-d25-15 – White Double-Layer, M14 Rear Port 5412910537452
V-WEH41-d30-15 – Black Double-Layer, M14 Rear Port 5430664623789
V-WEH42-d30-15 – White Double-Layer, M14 Rear Port 5430664623790
V-WEH41-d35-15 – Black Double-Layer, M14 Rear Port 5412910537453
V-WEH42-d35-15 – White Double-Layer, M14 Rear Port 5412910537454
V-WEH41-d40-15 – Black Double-Layer, M14 Rear Port 5430664623796
V-WEH42-d40-15 – White Double-Layer, M14 Rear Port 5430664623795
V-WEH41-d50-15 – Black Double-Layer, M14 Rear Port 5430664623786
V-WEH42-d50-15 – White Double-Layer, M14 Rear Port 5430664623791
V-WEH41-d25-30 – Black Double-Layer, M14 Rear Port 5409934772263
V-WEH42-d25-30 – White Double-Layer, M14 Rear Port 5409934772264
V-WEH41-d30-30 – Black Double-Layer, M14 Rear Port 5409934772265
V-WEH42-d30-30 – White Double-Layer, M14 Rear Port 5409934772266
V-WEH41-d35-30 – Black Double-Layer, M14 Rear Port 5409934772267
V-WEH42-d35-30 – White Double-Layer, M14 Rear Port 5409934772268
V-WEH41-d40-30 – Black Double-Layer, M14 Rear Port 5409934772269
V-WEH42-d40-30 – White Double-Layer, M14 Rear Port 5409934772270
V-WEH41-d50-30 – Black Double-Layer, M14 Rear Port 5409934772271
V-WEH42-d50-30 – White Double-Layer, M14 Rear Port 5409934772272
V-WEH41-d25-50 – Black Double-Layer, M14 Rear Port 5409953868746
V-WEH42-d25-50 – White Double-Layer, M14 Rear Port 5409953868747
V-WEH41-d30-50 – Black Double-Layer, M14 Rear Port 5409953868748
V-WEH42-d30-50 – White Double-Layer, M14 Rear Port 5409953868749
V-WEH41-d35-50 – Black Double-Layer, M14 Rear Port 5409953868750
V-WEH42-d35-50 – White Double-Layer, M14 Rear Port 5409953868751
V-WEH41-d40-50 – Black Double-Layer, M14 Rear Port 5409953868752
V-WEH42-d40-50 – White Double-Layer, M14 Rear Port 5409953868753
V-WEH41-d50-50 – Black Double-Layer, M14 Rear Port 5409953868754
V-WEH42-d50-50 – White Double-Layer, M14 Rear Port 5409953868755
V-WEH41-d60-10 – Black Double-Layer, M16 Rear Port 5430664623834
V-WEH42-d60-10 – White Double-Layer, M16 Rear Port 5430664623826
V-WEH41-d70-10 – Black Double-Layer, M16 Rear Port 5430664623835
V-WEH42-d70-10 – White Double-Layer, M16 Rear Port 5430664623827
V-WEH41-d80-10 – Black Double-Layer, M16 Rear Port 5430664623836
V-WEH42-d80-10 – White Double-Layer, M16 Rear Port 5430664623828
V-WEH41-d60-30 – Black Double-Layer, M16 Rear Port 5413017429971
V-WEH42-d60-30 – White Double-Layer, M16 Rear Port 5413017429972
V-WEH41-d70-30 – Black Double-Layer, M16 Rear Port 5413017429973
V-WEH42-d70-30 – White Double-Layer, M16 Rear Port 5413017429974
V-WEH41-d80-30 – Black Double-Layer, M16 Rear Port 5413017429975
V-WEH42-d80-30 – White Double-Layer, M16 Rear Port 5413017429976
V-WEH41-d60-50 – Black Double-Layer, M16 Rear Port 5413017429977
V-WEH42-d60-50 – White Double-Layer, M16 Rear Port 5413017429978
V-WEH41-d70-50 – Black Double-Layer, M16 Rear Port 5413017429979
V-WEH42-d70-50 – White Double-Layer, M16 Rear Port 5413017429980
V-WEH41-d80-50 – Black Double-Layer, M16 Rear Port 5413017429981
V-WEH42-d80-50 – White Double-Layer, M16 Rear Port 5413017429982
V-WEH41-d80-70 – Black Double-Layer, M16 Rear Port 6274318187910
V-WEH42-d80-70 – White Double-Layer, M16 Rear Port 6274318187911

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