Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-100S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-100S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 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 MACJ32X250-100S
A 250 mm stroke puts this MACJ at the long-travel end of the 32 mm range, with the extend stroke adjustable across a 100 mm window after installation. Double-acting as standard, it returns 402 N of push at 0.5 MPa and 563 N at 0.7 MPa, while variable air cushioning eases both ends of travel.
Long rods see side loads, so keep the 12 mm hard-chrome rod externally guided and the load aligned with the rod axis. The riveted stainless barrel and chrome finish cope with splash and humidity, and the built-in magnet feeds CMSG, DMSG or EMSG switches along the full travel. At 0.5 MPa treat roughly 241 N as the working force rather than the full rating.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-100S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-100S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 MACJ32X250-100S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -100 | 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 MACJ32X250-100S Is Used
Vertical check for battery tray lifts
With enough thrust to lift about 20 kg vertically at a 2:1 margin, this cylinder verifies and positions small tray lift rams in assembly rigs.
Cross-belt pusher for long cartons
The 250 mm travel sweeps wide cartons off a conveyor lane, and the 100 mm window lets the pusher stroke be matched to different carton widths on site.
Gate lift on a filling and capping line
Raises a flow-control gate over a filling head; the cushioned top-of-stroke stops protect the gate seal, and magnet switches confirm gate-open status to the line PLC.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-100S the Right Cylinder?
At 250 mm the rod is long enough that bending under side load matters - guide the load externally and keep thrust in line with the rod axis. Force-wise, 402 N push at 0.5 MPa places this between the 25 mm bore (245 N) and the 40 mm bore (628 N); count on about 241 N as the practical figure for sizing.
The 100 mm trim window suits families of parts with varying depths. Note the adjuster stops the extend stroke mechanically; it will not lock the rod against drift if air pressure is lost, so support the load by other means when needed.
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 MACJ32X250-100S FAQ
Extend force is 402 N at 0.5 MPa and retract is 346 N; at 0.7 MPa these become 563 N and 484 N. The theoretical maximum at 1.0 MPa is 82 kgf. Base stroke is 250 mm, trimmable within the 100 mm adjustable window, running 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) air.
Yes. Over 250 mm of travel the barrel and rod are exposed to more splash, dust and wipe cycles than a short cylinder sees. The riveted stainless barrel and 20 um hard-chrome plated rod resist the mild corrosion that peels painted minis, and the standard built-in magnet keeps CMSG, DMSG or EMSG position feedback available along the entire stroke.
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Standard models are processed and dispatched in 3-5 business days.
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