Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50SB 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 ACQJ40X100-50SB
The ACQJ40X100-50SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. It provides a usable extend range of 50-100mm from a 100mm full stroke, while the retract stroke remains completely unaffected. Because the piston area is unchanged, force output is identical to a standard ACQ of the same bore.
This unit includes a male M14x1.5 rod end for direct load coupling and a built-in piston magnet for position sensing. Operating at 30-500 mm/s, it uses a fixed NBR elastomer bumper at each end for impact deceleration rather than an adjustable air cushion.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50SB |
|---|---|
| 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 ACQJ40X100-50SB
| 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 ACQJ40X100-50SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during part changeovers without machining new spacers.
Carton Sealing Tension
Fine-tune the flap contact pressure on a case erector by trimming the extend end position in millimeters.
Press Assembly Trials
Safely test different bearing insertion depths on an assembly press by adjusting the external stop nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50SB the Right Cylinder?
For 0.5 MPa operations, this 40mm bore generates 628.3N push and 527.8N pull force. If your application requires less force, the 32mm bore offers 402.1N push, or for heavier loads, the 50mm bore provides 981.8N push. A fixed-stroke ACQ is sufficient if your extend end position never requires on-machine tuning. To order, confirm the 40mm bore, 100mm full stroke, 50mm adjustable window, -S magnet, and -B male 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 ACQJ40X100-50SB FAQ
It delivers 628.3N push and 527.8N pull at 0.5 MPa, 879.6N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 100mm with a 50mm adjustable window, giving a usable extend range of 50-100mm.
No, the adjuster only changes the extend stroke length; force remains identical to a standard ACQ because the piston area is unchanged, and the retract stroke is unaffected. The unit uses fixed elastomer bumpers for deceleration, and the built-in magnet works with reed or electronic solid-state switches.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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