At Guru Nanak Machine Tools, we manufacture a comprehensive range of high‑performance rotary cylinders (hydraulic and pneumatic rotary actuators) designed to deliver reliable rotary motion, high clamping torque, and precise angular positioning for automated machining and workholding systems. Our product portfolio includes hydraulic rotary cylinders, pneumatic rotary cylinders, swing clamp cylinders, spiral‑drive rotary actuators, and rack‑and‑pinion rotary actuators – all engineered to withstand the demanding cycles of CNC machining, fixture clamping, pallet changing, and part indexing. Whether you need 90° swing clamping, 180° part flipping, or multi‑station indexing, our rotary cylinders ensure consistent actuation, zero leakage, and repeatable positioning – helping you automate processes, reduce cycle times, and improve overall production efficiency.
With decades of experience in fluid power and actuation technology, we focus on robust sealing design, precision‑machined housing, and high‑grade material selection. Our rotary cylinders are manufactured from high‑strength aluminium or steel alloys, with hardened and ground piston rods, precision‑cut gear teeth (where applicable), and advanced sealing systems to deliver exceptional torque output, angular accuracy, and long service life – even under high‑pressure coolant and heavy‑duty cutting conditions.
Why choose Guru Nanak Rotary Cylinders
Every rotary cylinder we produce undergoes stringent pressure testing, leak testing, and angular repeatability verification – backed by our commitment to precision engineering. From standard ISO‑mount rotary actuators to customised stroke, angle, and port configurations, our cylinders provide the reliability and performance that automation engineers and machine builders depend on.
high torque & clamping force
Our rotary cylinders deliver high breakout torque and holding torque – from light‑duty pneumatic models to heavy‑duty hydraulic versions capable of several hundred Nm – ensuring secure clamping and reliable indexing even under heavy cutting loads.
precise angular positioning
Manufactured with precision‑ground stops, rack‑and‑pinion or spiral gearing, and adjustable cushioning, our cylinders offer repeatable angular accuracy within ±0.1° – essential for accurate part orientation, pallet positioning, and tool change applications.
versatile mounting & configurations
Available in multiple mounting styles (flange, foot, trunnion, front/rear), rotation angles (0‑90°, 0‑180°, 0‑360°), and port sizes – our cylinders fit most CNC fixtures, pallet systems, and automated workholding solutions.
durability & leak‑proof sealing
High‑grade seals (nitrile, FKM, or PTFE), hardened piston rods, and corrosion‑resistant coatings ensure long life, zero external leakage, and stable performance – even in high‑pressure coolant, chip‑laden, and harsh production environments.
Advanced rotary actuation technology
Our manufacturing processes incorporate CNC machining of cylinder bodies, precision gear hobbing (for rack‑and‑pinion types), and advanced seal assembly techniques to achieve the highest levels of torque efficiency, angular accuracy, and cycle life. From compact swing cylinders for tight fixture spaces to large‑bore rotary actuators for heavy pallet systems, we offer features that boost automation, reduce setup time, and improve overall machining economics.
- Hardened and ground piston rods (surface hardness HRC 58‑62)
- Precision‑ground gear teeth or spiral drive for smooth rotary motion
- Hydraulic up to 250 bar / Pneumatic up to 10 bar operating pressure
- Built‑in magnetic position sensors and proximity switch grooves available
- Adjustable rotation angle stops and cushioning for shock‑free operation
- Custom stroke lengths, rotation angles, and port configurations available
Frequently asked questions
We offer a complete range including hydraulic rotary cylinders, pneumatic rotary cylinders, swing clamp cylinders, rack‑and‑pinion rotary actuators, spiral‑drive rotary actuators, and helical rotary actuators. Custom rotation angles, torque ratings, and mounting styles are also available upon request.
Our quality process includes torque testing, angular position verification using precision rotary encoders, leak testing under pressure, and cycle‑life testing – ensuring every cylinder meets or exceeds ISO/DIN standards for angular repeatability, torque output, and sealing integrity.
Absolutely. We provide custom rotation angles, extended or shortened body lengths, special port positions, integrated position sensors, custom mounting flanges, and even multi‑position rotary actuators – all engineered to your specific machine interface and automation requirements.
Yes. Our hydraulic cylinders are rated up to 250 bar, and pneumatic models up to 10 bar, with heavy‑duty seal options for high‑cycle operation (up to several million cycles). Hardened internal components and advanced sealing ensure consistent performance under high pressure, high temperature, and continuous production cycles.
We offer comprehensive application support – from torque calculation, angle selection, and mounting configuration, to pressure settings, seal material recommendations, and maintenance schedules – ensuring you achieve optimal actuation performance, longevity, and process reliability.