Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 50mm 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
- Stroke50 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 MACJ63X50-20S
Stop screws, not shims, set the extend stroke on this MACJ63X50-20S - the 20 mm window trims the extend stroke on site without swapping parts. The 63 mm bore pushes 1557.9 N at 0.5 MPa and 2181.0 N at 0.7 MPa, double-acting with a variable air cushion at each end.
Plan on roughly 935 N of real work at 0.5 MPa (about 60 percent of the rating) and the cylinder will run cool for years. Its riveted stainless barrel and hard-chrome carbon rod laugh at condensation, cutting fluid mist and outdoor duty. The piston magnet is standard, so position feedback with CMSG, DMSG or EMSG reed switches costs no special order.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 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 MACJ63X50-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×50 | 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 MACJ63X50-20S Is Used
Crimp and mark station
Batch-crimping cable lugs or dot-marking steel tags, where 2181 N at 0.7 MPa makes a clean impression in one fast hit.
Conveyor gate stopper
A pop-up stop on a bottle line that must extend to an exact height per SKU - the 20 mm window absorbs the variation.
Lab press fixture
Compressing test coupons in a materials lab where the cushion removes the bounce that cracks brittle samples.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-20S the Right Cylinder?
Below this bore, the MA 50 gives you 981.3 N push and 880.8 N pull at 0.5 MPa - step down when the 935 N working figure is generous. The adjuster is an extend-side end stop, not a mid-stroke lock; if power drops, the load moves, so add a valve or external stop where holding matters.
FA flange and LB foot mounts plus I and Y rod knuckles cover most fixtures, and the built-in magnet keeps switch mounting free. Side loads are rarely an issue at a 50 mm stroke, but keep the M14x1.5 male rod thread coupling aligned to protect the 16 mm rod.
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 MACJ63X50-20S FAQ
Push at 0.5 MPa is 1557.9 N and pull 1457.4 N; at 0.7 MPa push reaches 2181.0 N with pull at 2040.3 N, and the 1.0 MPa theoretical maximum is 317.7 kgf. Operating pressure spans 0.15-1.0 MPa (22-145 psi), proof is 1.5 MPa (215 psi).
Yes - every MA-series cylinder ships with a built-in magnet as standard, so CMSG, DMSG and EMSG switches clip straight onto the barrel. That gives end-of-stroke or mid-zone detection without ordering a special piston, and it works alongside the variable air cushions at both ends.
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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.
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Most inquiries answered within 7-8 hours.
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