Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X80-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X80-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm 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.
- BoreØ50 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 MACJ50X80-75S
Biggest trim window in the 50 mm family: 75 mm of on-site adjustment over an 80 mm base stroke. That range plus 981 N of push at 0.5 MPa makes this the flexible one for lines where stroke specs keep moving. Air works the piston both ways (double-acting), and variable cushions at each end tame the stop even at the full 800 mm/s speed.
Construction stays true to the MA series: stainless-steel barrel rolled up with aluminium covers, hard-chrome plated rod, grease-storing two-way seals that shrug off damp and washdown. A sensible planning figure is about 589 N of real push at 0.5 MPa, leaving margin on the 981 N rating. The magnet is standard, so position switches from the CMSG / EMSG range bolt on without ordering options.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X80-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X80-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MACJ50X80-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -75 | 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 MACJ50X80-75S Is Used
Case former flap tuck
Tucks bottom flaps on a case packer running mixed box heights; the 75 mm window covers the range, and 981 N drives stiff double-wall board.
Lab press / sample compacting
Compacts powder samples in a pilot-plant press. Trim the stroke per recipe, run the cushion for a soft finish, and log position via an EMSG switch.
Roller-line stop gate
Pops a stop gate up on a gravity conveyor in a distribution hub. The stainless body shrugs off dust and damp, and cushions keep the gate from slamming.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X80-75S the Right Cylinder?
Force neighbours: 40 mm bore at 628 N and 63 mm at 1558 N (both at 0.5 MPa) bracket this 50 mm choice. The adjuster sets an end stop - it is not a mid-stroke lock, so a suspended load will settle if air is lost. Fix by FA flange or LB foot, fit I or Y knuckles where the tool pivots, and specify G or NPT ports instead of PT when the circuit calls for it.
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 MACJ50X80-75S FAQ
Expect 981.3 N push and 880.8 N pull at 0.5 MPa, 1373.8 N push and 1233.1 N pull at 0.7 MPa, and a 200.1 kgf theoretical maximum at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), rod speed 30-800 mm/s.
Mount it with the FA flange for face fixing or the LB foot for base fixing; I and Y rod knuckles are available for pivoting loads. Inside, a variable air cushion at each end is tuned by screw to soften deceleration, which is what lets you use the full 30-800 mm/s speed range without hammering the covers.
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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