Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100S
The ACQJ40X300-100S is a double-acting, single-rod JIS compact cylinder with a 300mm extended stroke, configured as a long-stroke made-to-order variant. An external M12x1.25 threaded stop and lock nut restrict the forward extension, providing a usable extend range of 200-300mm without swapping components. The return stroke remains completely unaffected. Because the piston area stays constant, output force is identical to a standard ACQ of this size, delivering 628.3N push at 0.5 MPa.
This bore 40mm unit features a 16mm piston rod, PT1/8 porting, and a female M8x1.25 rod-end thread. Deceleration relies on fixed NBR elastomer bumpers at each end rather than adjustable air cushions. The integrated -S magnet supports both reed and electronic solid-state sensing switches via the body grooves. Operating pressure spans 0.15-1.0 MPa, with speeds of 30-500mm/s across a -20 to +70 C temperature range.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 300 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 ACQJ40X300-100S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 ACQJ40X300-100S Is Used
Machining Fixture Tuning
Dial in the exact clamping reach on multi-product CNC fixtures by adjusting the extend stop from 200 to 300mm during new part introductions.
Sorting Diverter Setup
Set precise package push-off distances on conveyor lines, tweaking the end position without fabricating new hard stops for varying box sizes.
Carton Sealing Trial
Establish the optimal flap folding depth on packaging equipment by testing intermediate forward positions before locking the nut for production runs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100S the Right Cylinder?
For 0.5 MPa operations, this 40mm bore yields 628.3N push and 527.8N pull force. If your application requires less thrust, the 32mm bore provides 402.1N push, or step up to the 50mm bore for 981.8N push if heavier loads are present. A standard fixed-stroke ACQ is adequate when no end-position variance is needed. When ordering, verify the 300mm length, the 100mm reduction window, the -S magnet, and the female M8x1.25 rod thread.
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 ACQJ40X300-100S FAQ
The usable extend range is 200-300mm (300mm full stroke minus the 100mm window). Force is identical to a standard ACQ: 628.3N push and 527.8N pull at 0.5 MPa, 879.6N push at 0.7 MPa, and a maximum push of 128kgf at 1.0 MPa.
The M12x1.25 external threaded stop limits only the extend length, leaving the retract stroke untouched; it does not change the piston area, so force remains the same. Deceleration is handled by fixed NBR elastomer bumpers, and the -S piston magnet works with reed or electronic solid-state switches.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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