Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke100 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B
The AirTAC ACQJ40X100-30B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the end position on the machine without swapping parts, yielding a usable extend range of 70-100 mm (full 100 mm stroke minus up to 30 mm). The retract stroke remains completely unaffected.
Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore: 628.3 N push and 527.8 N pull at 0.5 MPa. This bore 40 model features a PT1/8 port, a 16 mm rod, fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, and a male M14x1.5 rod-end thread (-B) that couples directly to your load. The body includes sensor grooves, though this specific unit ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 100 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B Is Used
Machining Fixture Stops
Dial in the exact 70-100 mm extend position for varying part heights on a CNC machining fixture without fabricating new spacer rings.
Product Changeover Pushers
Quickly reposition the extend end stop to accommodate different carton widths on a packaging line changeover using the external M12x1.25 adjuster.
Prototype Forming Press
Test trial end positions on a prototype press, tweaking the stroke depth in millimeters to find the optimal forming distance before locking the nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B the Right Cylinder?
When sizing this 40 mm bore cylinder, the adjacent 32 mm bore provides 402.1 N push at 0.5 MPa, while the larger 50 mm bore yields 981.8 N push at 0.5 MPa. If your application requires a fixed 100 mm extend depth with no on-machine variability, a standard ACQ cylinder will suffice. For this adjustable version, confirm your ordering essentials: 40 mm bore, 100 mm full stroke, 30 mm adjuster window, male M14x1.5 rod thread (-B), and no magnet. Note that a plain cylinder does not hold its load on air loss; for a fail-safe hold, specify an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-30B FAQ
The usable extend range is 70-100 mm (100 mm full stroke minus a 30 mm window). The force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke length only; it does not change piston area, so force remains unchanged. The retract stroke is unaffected. Deceleration is handled by fixed NBR elastomer bumpers at each end, not adjustable air cushions.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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