Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 500mm 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
- Stroke500 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 MACJ50X500-40S
With a 50 mm bore on a long 500 mm stroke, this cylinder delivers 981.3 N (about 100 kgf) of push at 0.5 MPa, backed by 1373.8 N at 0.7 MPa. The extend stroke can be trimmed by up to 40 mm on site with the stop screw, and a variable air cushion at both ends soaks up shock when you run 30-800 mm/s into heavy loads.
The body is a riveted round barrel in stainless steel with a hard-chrome plated rod - a build that shrugs off washdown and damp air far better than painted minis. Every unit carries a built-in magnet as standard, so CMSG, DMSG or EMSG switches clip straight on. Planning real work? Count on roughly 589 N at 0.5 MPa, or about 50 kg of vertical lift with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 MACJ50X500-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×500 | 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 MACJ50X500-40S Is Used
Bottling line lane gates
Diverting bottle rows between filler lanes at up to 800 mm/s, with the 40 mm trim absorbing minor machine-to-machine spacing differences.
Timber press hold-downs
981 N at 0.5 MPa clamps plywood sheets against a saw fence through the full 500 mm travel; the cushion softens each clamp cycle.
Pallet magazine pushers
Feeding stacks of empty pallets into a wrapper infeed, sensing stack position with a CMSG switch on the standard magnet.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-40S the Right Cylinder?
At 981.3 N push at 0.5 MPa this 50 mm bore sits between the 40 mm size (628.3 N) and the 63 mm size (1557.9 N) - step down if your load is under about 600 N, step up if it creeps past 900 N. Remember the end-stop adjuster sets stroke length only; it will not hold a load if air pressure drops, so add locking valves where holding matters. FA flange or LB foot mounting suits a 500 mm stroke, and the standard magnet pairs with CMSG / DMSG / EMSG switches for end-of-travel sensing. On a stroke this long, keep side loads low and guide the load externally 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 MACJ50X500-40S FAQ
At 0.5 MPa it pushes 981.3 N and pulls 880.8 N; at 0.7 MPa those rise to 1373.8 N push and 1233.1 N pull. The theoretical maximum at 1.0 MPa is 200.1 kgf. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure.
The barrel is stainless steel rolled onto aluminium-alloy covers, with a hard-chrome plated rod, so splash, washdown mist and outdoor humidity cause far less trouble than on painted-steel minis. Air ports are 1/4 inch; thread options are PT, G or NPT.
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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