Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X80-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X80-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 80mm 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
- Stroke80 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 MACJ63X80-40S
Built on AirTAC's round-body MA platform, the MACJ63X80-40S pairs a stainless-steel barrel with a hard-chrome plated carbon-steel rod and aluminium-alloy covers rolled onto the tube for a tight, riveted seal. It runs double-acting with a variable air cushion at both ends, and the external stop screw trims the extend stroke anywhere within a 40 mm window on site. Supply range is 0.15-1.0 MPa (22-145 psi) at speeds of 30-800 mm/s.
At 0.5 MPa this 63 mm bore pushes with 1557.9 N and pulls 1457.4 N, rising to 2181.0 N at 0.7 MPa and a theoretical 317.7 kgf at 1.0 MPa. That leaves roughly 935 N of honest working force at typical plant pressure, so size fixtures and loads around that figure. The stainless barrel and chrome rod shrug off washdown and humidity, while the built-in magnet, fitted as standard, accepts CMSG, DMSG and EMSG switches straight from stock.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X80-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X80-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 80 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 MACJ63X80-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -40 | 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 MACJ63X80-40S Is Used
Bushing press for gearbox housings
With about 935 N of usable push at 0.5 MPa, the 40 mm-trimmed stroke seats bronze bushings into aluminium housings without slamming the cap.
Palletizer pusher arm
The 1557.9 N push at 0.5 MPa squares cartons on a pallet conveyor; the dual cushion keeps 800 mm/s runs quiet at both ends.
Dairy reject gate
The stainless barrel and chrome rod handle daily washdown at a milk filler, kicking off-spec tubs aside with the stroke set inside the 40 mm window.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X80-40S the Right Cylinder?
Sizing down is often cheaper: a 50 mm bore in the same family gives 981.3 N at 0.5 MPa, and 32 or 40 mm bores cover 402.2 N and 628.3 N if the load is lighter. The 63 mm bore is the ceiling of the MA series, so nothing larger exists here. The 40 mm trim window only shortens the extend stroke; it is a mechanical end stop, not a lock, so on air loss the rod still drifts - add valving if the position must be held.
Mount as an FA flange or LB foot and add I or Y rod knuckles where the load pivots; the adjustable version carries no SDB or back-cover mounting code. Rod thread is M14x1.5 male and the bore takes 1/4" ports. The magnet is already in the piston, so sensing needs only the switch.
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 MACJ63X80-40S FAQ
At 0.5 MPa it pushes 1557.9 N and pulls 1457.4 N; at 0.7 MPa push rises to 2181.0 N and pull to 2040.3 N. The theoretical maximum at 1.0 MPa is 317.7 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) and the rod runs at 30-800 mm/s.
The rolled stainless barrel with hard-chrome rod resists corrosion on wet or outdoor air lines, and the variable air cushion at both ends can be tuned to absorb stop shock, so faster cycling or heavier loads never hammer the covers. Bore 63 uses 1/4" ports.
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.
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