Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X250-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X250-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 250mm stroke, M5×0.8 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.
- BoreØ16 mm
- Stroke250 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM6×1.0
- 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 MACJ16X250-20S
Between the fine 10 mm trim and the wide 100 mm version sits this -20 model: same 250 mm travel and 16 mm stainless barrel, but the extend stroke can be wound back up to 20 mm on site. It runs double acting with a variable cushion at both caps, pushing 100.5 N and pulling 86.4 N at 0.5 MPa, or 140.7 N with a 0.7 MPa supply.
The rolling-packed construction - stainless tube, riveted aluminium covers, hard-chrome 6 mm rod - keeps its seals intact through humidity and light washdown that would blister painted minis. Budget about 60 N of that 0.5 MPa push for real work; vertically the bore can raise roughly 10 kg, so plan around 5 kg for a dependable 2:1 margin. The magnet ships standard for CMSG / DMSG / EMSG sensing, and speed spans 30-800 mm/s across 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X250-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X250-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 250 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 300 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MACJ16X250-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×250 | 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 MACJ16X250-20S Is Used
Slide gate indexing
A small indexing gate on an electronics conveyor slides 250 mm per station, and the 20 mm trim aligns the gate stop to each lane pitch.
Dosing head lift
Raising a micro-dosing head of about 5 kg in a cosmetic filling rig stays within the bore's 2:1 vertical margin at 0.5 MPa.
Tray lane divider
The rod swings a divider across a tray lane in a distribution sorter; 86.4 N of pull returns it clear of passing totes.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X250-20S the Right Cylinder?
Choose this bore when 100.5 N at 0.5 MPa covers the load and a 20 mm correction range matches your fixture variation; move up to the 25 mm bore (245.3 N push) if forces crowd that budget. Over a 250 mm stroke, guide the load externally - the 6 mm rod tolerates little side load. FA flange and LB foot mount the body, I and Y knuckles link the rod, and PT / G / NPT thread options suit local fittings. The adjuster sets an extend end stop only and will not arrest a dropped load if air fails.
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 MACJ16X250-20S FAQ
Yes: 100.5 N push and 86.4 N pull at 0.5 MPa; 140.7 N push and 120.9 N pull at 0.7 MPa; 20.5 kgf theoretical maximum at 1.0 MPa. The 16 mm bore runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-800 mm/s, with proof pressure of 1.5 MPa (215 psi).
A rolled stainless tube with riveted covers keeps a reliable seal and resists the condensation and mild washdown that corrode painted mini cylinders, while the hard-chrome plated 6 mm rod keeps wear low over millions of cycles. Combine that with the standard magnet and a CMSG / DMSG / EMSG switch and you get corrosion resistance plus position feedback in one small package.
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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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