Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke100 mm
- Port sizeM5×0.8
- Adjuster threadM8×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B
The AirTAC ACQJ20X100-100B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You can tune the usable extend range from 0 mm up to the full 100 mm directly on your machinery, while the retract stroke remains completely unaffected. Because the piston area stays constant, output force is identical to a standard ACQ of this bore.
This variant includes a male M8x1.25 rod-end thread for direct load coupling and ships without a sensor magnet, though the body retains integrated switch grooves. It features a fixed elastomer bumper at each end for deceleration and operates reliably within a 0.15 to 1.0 MPa pressure range.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 100 mm |
| Adjuster thread | M8×1.25 |
| Port size | M5×0.8 |
| 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 | M5×0.8 (F) / M8×1.25 (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B Is Used
Machining Fixture Stops
Dial in the extend stroke from 0 to 100 mm to accommodate varying part sizes on a milling fixture without swapping out cylinders.
Product Changeover Diverter
Quickly reposition the extend end stop to handle different package widths on a packaging line diverter arm.
Assembly Machine Probing
Set trial end positions during new product introduction on an assembly station to find the exact contact point.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B the Right Cylinder?
If you need less push force, the adjacent 16 mm bore yields 100.5 N at 0.5 MPa, whereas stepping up to a 25 mm bore provides 245.4 N. A fixed-stroke ACQ is sufficient if your end position never requires tweaking, but this adjustable model excels in setups demanding on-the-fly stroke changes. Confirm your ordering essentials: 20 mm bore, 100 mm full stroke, 100 mm window, male rod thread, and no magnet.
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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100B FAQ
This 20 mm bore cylinder delivers 157.1 N push and 117.8 N pull at 0.5 MPa, 219.9 N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa. The full stroke is 100 mm with a 100 mm adjustment window, giving a usable extend range of 0-100 mm.
An external M8x1.25 threaded adjuster with a lock nut mechanically limits the extend distance without altering piston area, so force remains unchanged. Deceleration is handled by a fixed elastomer bumper, not an adjustable air cushion, and the retract stroke is unaffected.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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