Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 70mm stroke, 1/8" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ63 mm
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.5
- CushionFixed TPU bumper (both ends)
- 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40
A double acting ISO 21287 compact cylinder, the ACEJ63X70-40 pairs a 63 mm bore with a 70 mm stroke that an external stop screw trims on site by up to 40 mm, giving a usable extend range of 30-70 mm. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N on the extend stroke at 0.7 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and machine frames where a full-length body will not fit.
The hard-anodized aluminium body carries a roller-burnished bore, and the S45C hard-chrome-plated 16 mm rod resists wear in daily production. Fixed TPU bumpers at both ends absorb end-of-stroke shock. Plan on roughly 930 N of real work at 0.5 MPa (about 0.6 of the push rating), which lifts around 47 kg vertically - or about 24 kg with a 2:1 margin. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, ports 1/8". The magnet is not fitted; order the -S code if you need CMSE / DMSE switch sensing.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40 Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 70 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 250 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -40 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40 Is Used
Press-fit bushing insertion
The 1558.6 N push at 0.5 MPa seats automotive bushings into control-arm housings, with the 40 mm window letting one cylinder serve two housing depths on the same fixture.
Pallet clamp on a CNC fixture
Mounted by FA flange inside a machining-centre jig, the 30-70 mm adjustable extend range clamps cast aluminium pallets without swapping cylinders between part families.
Case hold-down on a carton line
The compact body fits under low guarding on a carton sealing conveyor, holding flaps flat at up to 47 kg equivalent vertical load while the line runs at speed.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40 the Right Cylinder?
At 1558.6 N push at 0.5 MPa, the 63 mm bore suits clamping and pressing loads in the 100-150 kg class. Step down to the 50 mm bore (981.7 N push at 0.5 MPa) for lighter jigs, or step up to the 80 mm bore (2513.3 N) when the part is heavier or pressure may sag. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve where a load must stay put. FA flange and LB foot mountings bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE position switches.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40 FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push rises to 2182.1 N, and the theoretical maximum is 317.9 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 70 mm extend stroke by up to 40 mm, so the working range is 30-70 mm. It shortens the stroke only - it never extends it past 70 mm - and it is an end stop, not a load-holding brake. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The ISO 21287 compact build saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolting straight to the standard face. End-of-stroke shock is absorbed by fixed TPU bumpers at both ends. Position sensing needs the optional -S magnet code: this model has no magnet fitted, so CMSE / DMSE switches only work if you order the -S variant. The rod end is female M10x1.5 and the air port is 1/8".
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.
Request a Quote for Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.