Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø20mm bore and 160mm 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.
- BoreØ20 mm
- Stroke160 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- 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 MACJ20X160-50S
Whether you bolt it down on an LB foot, face-mount it with an FA flange, or pick up an I or Y rod knuckle, the MACJ20X160-50S gives you a 50 mm window in which the extend stroke can be re-trimmed on site. Double-acting with a variable cushion at both ends, it pushes 157 N at 0.5 MPa and 219.8 N at 0.7 MPa across a 30-800 mm/s speed band.
That 157 N equates to about 16 kgf of theoretical lift; halve it for a 2:1 safety margin and the cylinder will raise roughly 8 kg vertically - a filled small container, a guard door or a fixture plate. The 8 mm hard-chrome rod runs in a riveted stainless barrel with aluminium covers, and 1/8" ports keep the plumbing compact.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MACJ20X160-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -50 | 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 MACJ20X160-50S Is Used
Roaster damper control
Driving an air damper on a coffee roaster exhaust, where heat and chaff dust favor the stainless barrel; the 50 mm window is re-trimmed between roast profiles and an FA flange fixes it to the duct frame.
Glue pot plunger
Pressing a follower plate into a 20 liter glue drum with about 8 kg of vertical force margin, using an LB foot mount on the dispenser frame and a Y knuckle to keep the plunger square.
Guard door closer
Closing an interlocked machine guard in a packaging cell: the cylinder reaches 160 mm across the door travel, cushions the latch arrival, and an EMSG switch confirms full close for the safety circuit.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-50S the Right Cylinder?
If 100.5 N from a bore 16 cylinder is marginal and 245.3 N from bore 25 overshoots, the 157 N this bore 20 model delivers at 0.5 MPa is the middle answer; at 0.7 MPa it steps up to 219.8 N. The 50 mm window means the stop screw can be re-set later as the product or fixture changes. Keep the 160 mm stroke's side loads on external guides - the 8 mm chrome rod is not a beam. Foot (LB) and flange (FA) mounting plus I / Y knuckles fit most frames, and the adjuster should never be trusted to hold a vertical load when air is off.
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 MACJ20X160-50S FAQ
Bore 20 mm, rod 8 mm: push 157 N and pull 131.9 N at 0.5 MPa, push 219.8 N and pull 184.7 N at 0.7 MPa, theoretical max 32.0 kgf at 1.0 MPa. Port 1/8", rod thread M8x1.25, stroke 160 mm with a 50 mm adjustment window, speed 30-800 mm/s, air at 0.15-1.0 MPa (22-145 psi).
The barrel is stainless steel and the 8 mm rod is carbon steel plated with 20 um of hard chrome, while the aluminium covers are rolled onto the tube - a riveted pack that stays sealed through humidity, splash and repeated washdowns where painted minis pit and jam. The body also carries the magnet for CMSG / DMSG / EMSG switches as standard.
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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