Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 15mm stroke, 1/4" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ63 mm
- Stroke15 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S
Tight machine pockets still get the heaviest push in the MA range from the MACJ63X15-20S: a 63 mm bore in a 15 mm-stroke round stainless body, riveted together with no tie rods to work loose. The extend stroke adjusts across the ordered 20 mm window via the external stop screw, and a variable air cushion at both ends keeps the 1558 N impact from ringing the aluminium covers.
Numbers that matter at 0.5 MPa: about 1558 N push and 1457 N pull, rising to 2181 N push at 0.7 MPa. Apply the 60 percent planning margin and you have about 935 N of dependable push - and on the pull stroke enough to raise roughly 79 kg vertically with a 2:1 margin. Fitted with a magnet as standard, the barrel accepts CMSG, DMSG or EMSG switches with no options list.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 15 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S Is Used
Transfer die staking station
Stakes dowels station by station in a transfer die; the 20 mm trim window absorbs height variation between die positions.
Sorter diverter snap arm
Snaps a diverter arm across a parcel sorter lane; about 79 kg lift capability with a cushioned return protects the linkage.
Bench tab clinching tool
Clinches sheet-metal tabs at a maintenance bench; the short 15 mm hit keeps cycle time tight on rework trays.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S the Right Cylinder?
One step down, the 50 mm bore still gives 981 N push and 881 N pull at 0.5 MPa - plenty for lighter clinch or cut work, so verify the load before ordering the 63. The adjuster shortens the extend stroke only and is not a position lock; on air loss the piston drifts, so pair it with a locking circuit if the load must stay put. Choose FA flange, LB foot, or I/Y rod knuckles to suit the fixture; the 16 mm hard-chrome rod takes the compressive load well but keep parts aligned to the bore axis.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S FAQ
At 0.5 MPa: about 1557.9 N push and 1457.4 N pull. At 0.7 MPa: about 2181.0 N push and 2040.3 N pull. Theoretical maximum is 317.7 kgf at 1.0 MPa, with operating pressure 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
In the last millimetres of travel air bleeds through an adjustable restrictor, decelerating the piston smoothly; because the cushion is variable you tune each end separately for the load at hand. Combined with the stainless round barrel, the cylinder stays quiet and seal-friendly even at the full 800 mm/s.
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 MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X15-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.