Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X250-100S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X250-100S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 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 MACJ50X250-100S
Few round minis reach this far: 250 mm of stroke on a 50 mm bore, with the stop screw trimming extend travel anywhere inside a 100 mm window to match downstream fixtures. Push force at 0.5 MPa is 981.3 N; budgeting about 589 N of that for real work covers seal drag, guide friction and dips in plant air. Variable cushions at both ends tame the stop as loads accelerate across the long travel, up to the full 800 mm/s.
The 16 mm hard-chrome rod spans the whole 250 mm, so keep side load low and guide externally when parts hang off the tooling. Inside, the stainless barrel rolled onto aluminium covers shrugs off washdown and outdoor dust, and the standard piston magnet pairs with CMSG, DMSG and EMSG switches for zone feedback along the stroke.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X250-100S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X250-100S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 MACJ50X250-100S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | 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 MACJ50X250-100S Is Used
Cross-belt box kicker
Ejecting shipping cases from a takeaway belt into a chute suits the 250 mm travel; the 100 mm window lets the kicker position be retuned when case sizes change.
Hopper slide gate actuator
Opening and closing a granulate slide gate across 250 mm draws on the full 981.3 N push at 0.5 MPa to shear packed powder bridges at the outlet.
Rack tray ejector
Pushing bakery or electronics trays partway out of deep storage racks relies on the long cushioned stroke, with the extend stop set back inside the 100 mm window to match shelf depth.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X250-100S the Right Cylinder?
Sizing check: drop to a 40 mm bore for 628.3 N push at 0.5 MPa if the load is lighter, or step to the 63 mm bore for 1557.9 N when the push must be certain. On travel this long, side load is the usual failure cause, so guide the load and keep the rod in compression where possible. The end-stop trim is not a mid-stroke lock, so hold stalled or vertical loads with valving instead. FA flange and LB foot bolt the body to the frame; ports are 1/4 and pressure runs 0.15-1.0 MPa (22-145 psi).
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 MACJ50X250-100S FAQ
The 50 mm bore pushes 981.3 N and pulls 880.8 N at 0.5 MPa; at 0.7 MPa those figures rise to 1373.8 N and 1233.1 N, and the theoretical maximum at 1.0 MPa is 200.1 kgf. The pressure envelope is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
The round body is a stainless-steel tube rolled onto aluminium covers, and the 16 mm rod is hard-chrome plated; that combination tolerates rinse water, coolant mist and outdoor humidity far better than painted mini cylinders, with no paint to flake into the product zone.
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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