Large bore pneumatic cylinders are ideal for applications requiring higher force and robust motion in automated systems. This guide highlights five suitable options, each chosen for different use cases—heavy-duty production lines, tailgate or material handling, or compact industrial machinery. Read on to identify which cylinder best fits your needs, from long-stroke workhorse designs to reliable mid-size configurations.
HNJPC SC Long Stroke Pneumatic Cylinder (4″ Bore, 500mm Stroke)
This heavy‑duty aluminum cylinder uses a 4 inch bore and a 20 inch stroke to deliver extended travel with strong linear force. It is a good pick for long-stroke press or positioning tasks in manufacturing environments. Best for operators needing a robust, all‑steel‑style feel with a lighter body than traditional steel cylinders.
- Best for long‑stroke positioning in automation lines.
- Requires supply at 0–145 PSI (0–1 MPa).
- Consider whether a magnetic option is needed for sensor integration.
TAILONZ Pneumatic 25mm Bore 150mm Stroke Cylinder
Compact 25mm bore double‑acting cylinder with 150mm stroke, designed for smaller automation tasks or confined spaces. It supports up to 145 PSI and includes a Y connector with two fittings, making it ready for immediate integration in compact systems. Best for compact machines or pilot lines where space is limited.
- Better for space‑constrained setups than larger bore models.
- Double acting with a single rod ensures consistent motion both ways.
- Limitations: smaller bore yields lower peak force compared to larger models.
Baomain Pneumatic SC 63 x 200 Cylinder
This 2-1/2″ bore, 7.87″ stroke cylinder offers balanced performance for mid‑size automation tasks. It features a double‑acting design and an M16x1.5 threaded piston rod for secure mounting. PT 3/8 port with two 8mm push‑in fittings enables straightforward integration into most pneumatic systems. Best for mid‑range force needs with easy installation.
- Choose this for versatile mid‑bore applications requiring reliable force.
- Maintenance‑friendly due to self‑lubricating bearing.
- Caution: ensure tubing and fittings match 8mm outer diameter for proper connection.
Baomain Pneumatic SC 63 x 500 Cylinder
This long‑stroke 2-1/2″ bore cylinder extends the reach to 19.68 inches, enabling substantial travel in a single actuation. With an M16x1.5 threaded rod and two push‑in fittings for quick plumbing, it supports robust double‑acting operation. Best for lines needing tall stroke without sacrificing bore strength.
- Better for longer travel while maintaining manageable footprint.
- Includes standard fittings to speed up installation.
- Limitation: longer stroke can require more mounting space and alignment attention.
Baomain Pneumatic SC 63 x 300 with Mounting Kit
This 2-1/2″ bore cylinder offers an 11.81″ stroke with mounting options included. It features an M16x1.5 threaded rod and PT 3/8 port, plus a mounting kit with a double ear base and Y connector. Best for systems needing practical mounting solutions without extra hardware shopping.
- Choose this if you need mounting flexibility and ready-to-use fittings.
- Includes mounting bracket and base for straightforward integration.
- Limitation: includes extra components that may require space planning around the installation area.
Buying a large bore pneumatic cylinder involves evaluating bore size, stroke length, port standards, and mounting options. The right choice balances required force, travel, space, and system compatibility.
Buying Guide
Key considerations for selecting large bore pneumatic cylinders:
- Bore size and stroke length: Higher bore means more force; longer stroke enables greater travel. Match to the mechanical load and required end position.
- Port size and fittings: Ensure port type (PT, G), thread size, and fitting types align with your existing tubing and manifolds.
- Actuation and mounting: Double-acting cylinders provide power in both directions; plan mounting hardware to reduce misalignment and wear.
- Material and durability: Aluminum housings reduce weight while remaining strong; consider corrosion resistance in your environment.
- Mounting provisions: Some models include feet, flanges, or base mounting; verify compatibility with your frame or machine bed.
- Maintenance needs: Self‑lubricating bearings can reduce upkeep; consider service intervals and lubrication access.
Practical comparison questions
- Which bore size gives the best balance of force and speed for a given load?
- Is a longer stroke necessary to reach the required end position in your equipment?
- Do you need integrated mounting hardware or will you source your own brackets?
- Are there space constraints that favor compact or extended configurations?
FAQ
- What is the advantage of a large bore cylinder?
A larger bore provides more output force, which helps move heavier loads or overcome friction in automation tasks. - How do I choose between single rod and double acting cylinders?
Double acting cylinders provide force in both directions, suitable for most automation tasks; single rod versions are common when back‑drive resistance is minimal. - Are these cylinders compatible with standard air supply systems?
Yes, most models use common PT or G port sizes and operate within typical industrial air pressures (around 0–145 PSI). - What mounting options should I consider?
Look for bases, flanges, or feet compatible with your machine frame, and verify that rod end threading matches your couplings or end fittings. - Can I reuse fittings from existing cylinders?
If port sizes and thread standards match, reusing fittings can simplify installation; otherwise, replace with matching components. - Is maintenance required for self-lubricating bearings?
These bearings help reduce routine maintenance, but periodic inspection is recommended to ensure smooth operation.