Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 50mm stroke, 1/8" 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.
- BoreØ32 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- 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 MACJ32X50-40S
Wrapped in a riveted stainless-steel barrel with a hard-chrome plated 12 mm rod, the MACJ32X50-40S shrugs off washdown splash and light corrosive atmospheres that quickly ruin painted mini cylinders. Its rolling-packed aluminium covers and grease-storing two-way piston seal keep the body reliably sealed over years of cycling.
This is a double-acting, adjustable-stroke cylinder with a variable air cushion at both ends; the stop screw shortens the extend stroke anywhere inside a 40 mm window. At 0.5 MPa it pushes 402 N and pulls 346 N, so budget roughly 241 N for real work instead of the full rating. The magnet ships built in, so CMSG / DMSG / EMSG switches drop straight on, with speed tunable from 30 to 800 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MACJ32X50-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 MACJ32X50-40S Is Used
Punch-clearance clamping
Trim the extend stroke between 10 and 50 mm to set an exact tool gap on a small stamping fixture, with the cushion absorbing each clamp impact.
Reject-lane gate flip
Kick mislabeled cartons off a single lane at up to 800 mm/s, sizing the sweep precisely with the stop screw and confirming position via DMSG.
Bench-test actuator
Cycle plastic snap-fit samples in a lab rig with repeatable cushioned endpoints, trimming throw as test fixtures change.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-40S the Right Cylinder?
At this force class a 25 mm bore (245 N push at 0.5 MPa) handles light clamping, while a 40 mm bore (628 N push) doubles the muscle if your load creeps up. Remember the adjuster is a mechanical end stop, not a mid-stroke lock - if air fails, the rod still drifts, so do not treat it as a load-holding brake. Mount with an FA flange or LB foot, add I or Y rod knuckles where the linkage needs a pivot, and the standard magnet keeps switch feedback free of special orders.
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 MACJ32X50-40S FAQ
At 0.5 MPa: 402 N push and 346 N pull. At 0.7 MPa: 563 N push and 484 N pull. Theoretical maximum at 1.0 MPa is 82 kgf. The rod measures 12 mm with an M10x1.25 male thread, ports are 1/8", supply runs 0.15-1.0 MPa (22-145 psi), speed is 30-800 mm/s, and the extend stroke trims within a 40 mm window.
Yes. Every MACJ cylinder carries a built-in piston magnet as standard equipment, so CMSG, DMSG or EMSG switches mount directly on the barrel without ordering a magnetized special. The stainless barrel also gives switches a clean, corrosion-free clamping surface in wet shops.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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