Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-20S 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 MACJ50X500-20S
Long-reach push and pull jobs get a full 500 mm of stroke from this 50 mm bore MACJ, pushing 981 N at 0.5 MPa (880 N on the return side). A 20 mm adjustable window on the extend stroke lets maintenance shorten travel on site when the line layout changes, and the variable air cushion at each end absorbs the energy of a full-speed 30-800 mm/s approach. The stainless tube with a hard-chrome plated 16 mm rod outlasts coated mini bodies in splash zones and mild chemical mist.
Lift math at a glance: this bore can raise about 100 kg vertically at 0.5 MPa; halve that to around 50 kg and you have a 2:1 margin for gates and doors. The magnet is fitted as standard, so CMSG and DMSG switches read end positions straight out of the box, and pressure spans 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-20S |
|---|---|
| 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 MACJ50X500-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×500 | Stroke length in mm. |
| -20 | 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 MACJ50X500-20S Is Used
Slide stroke fine-tuning on a wood-panel cutoff saw
Sawdust and humidity punish coated minis; the stainless barrel keeps sealing true while the 20 mm adjuster sets exact push length for each panel thickness.
Can-depalletizer layer gate actuation
Full layers get pushed sideways with 981 N at 0.5 MPa; the 500 mm travel crosses a standard pallet width and the magnet confirms the gate is seated.
Tension take-up arm on a converting line
880 N of pull at 0.5 MPa keeps web tension rollers loaded; cushions damp arm bounce and the trim window zeroes in the arm rest position.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-20S the Right Cylinder?
Compare the neighbourhood before ordering: bore 40 (628 N push at 0.5 MPa) suits lighter ejectors, while bore 63 (1558 N) takes on heavy clamping; the 50 mm bore is the balanced pick for pushers in the 500-900 N band. The stop screw shortens the extend stroke within its 20 mm window - it is a position stop only, so a dropped supply line still lets the load drift and a blocking valve belongs in the circuit wherever holding matters. FA flange or LB foot mounting; I and Y knuckles suit linkage jobs. With 500 mm of rod exposed, route side loads into a guide, not the 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 MACJ50X500-20S FAQ
Push 981.3 N and pull 880.8 N at 0.5 MPa; push 1373.8 N and pull 1233.1 N at 0.7 MPa; theoretical ceiling 200.1 kgf at 1.0 MPa. Ports are 1/4", rod thread M14x1.5, rod 16 mm, stroke 500 mm with a 20 mm adjustable extend window and cushions at both ends, supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
The barrel is stainless steel with aluminium covers riveted into a rolling-packed body, and the carbon-steel rod carries a 20 um hard-chrome plating. That combination resists rust and rinse-down where painted minis fail, and the two-way piston seals store grease internally to keep 500 mm of travel moving smoothly through dust.
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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