Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 100–175mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke175 mm
- Adjustable100–175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75
The AirTAC MBLCJ20X175-75 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 157 N push and 132 N pull force at 0.5 MPa. The 75 mm rear trimmer creates a usable travel window of 100 to 175 mm, allowing you to dial in the exact extended position without machining spacers.
Unlike the fixed rubber bumper on an MBLJ, the screw-tunable air cushion lets you manage end-of-stroke deceleration for faster cycling. Because this SKU lacks the -S magnet code, it cannot host a CMSG reed or DMSG solid-state sensor. The 8 mm carbon-steel rod is hard-chrome plated (20 um) and uses a heterogeneous two-way grease-retaining piston seal inside the riveted rolling-packed barrel.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 100–175 mm (trim 75 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×175 | Nominal stroke length in mm. |
| -75 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75 Is Used
PCB reject gate
Dial the 100-175 mm window to push a reject gate exactly over a conveyor edge, using the tunable cushion to soften the 157 N impact at high speed.
Label applicator arm
Adjusts the extension stop precisely for varying label box widths, while the air cushion prevents the 8 mm rod from slamming during 30-800 mm/s strokes.
Light-duty test fixture
Trims rear travel to seat a delicate electronic connector without bottoming out, relying on the 132 N pull force to safely retract the probe.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75 the Right Cylinder?
At 0.5 MPa, this 20 mm bore generates 157 N push. If you need less force, there is no smaller MBL size, so you must reduce pressure. If your load requires more thrust, step up to the 25 mm bore, which provides 245 N push at 0.5 MPa. Choose this MBLCJ over the MBLJ when your 175 mm travel speed requires tuned deceleration to protect the end covers, or over the MBLC if you need a variable end position.
The 75 mm rear adjuster sets the travel end-stop; it does not lock the load in place, and the cushion only decelerates, so use an external locking device for position holding. Mounting is limited to Basic, FA, or LB; no SDB pivot or back-cover code is available. For a direct replacement, match the 20 mm bore, 175 mm stroke, 75 mm adjust code, G1/8 PT port, and lack of an S magnet. With a 175 mm stroke on an 8 mm rod, add an external guide to prevent rod bending under side-loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-75 FAQ
At 0.5 MPa, the 20 mm bore provides 157 N push and 132 N pull. At 0.7 MPa, push increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The 75 mm rear adjuster is a travel stop that sets your usable stroke window from 100 to 175 mm. The adjustable air cushion is a screw valve that tunes end-of-stroke deceleration. Neither holds the load; the adjuster is a stop and the cushion only slows the piston.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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