# HELISTAR Co., Ltd.

> HELISTAR is a Taiwan-based manufacturer of torque control and web-tension control components for roll-to-roll (R2R) industrial machinery. Core products are magnetic powder brakes and clutches, electromagnetic brakes and clutches, tension controllers, and tension sensors. HELISTAR also provides ODM development, custom engineering from application requirements, drop-in replacement development for legacy and discontinued units, and overhaul (refurbishment) services for OEM machine builders worldwide.

HELISTAR components are used to control torque and web tension in converting and R2R processes: printing, bag making, slitting, coating and laminating, and rewinding/unwinding of paper, film, foil, textile, wire, and cable. Typical buyers are OEM machine builders, R&D and design engineers, and procurement teams. Product specifications (torque, size, wiring) are published on each product page; HELISTAR is a B2B manufacturer and does not publish prices — pricing and selection are handled through direct inquiry.

This site is published in four languages under the same URL paths. English is the default at `https://www.helistar.com.tw/`; localized versions live at `/zh-tw/` (Traditional Chinese), `/zh-cn/` (Simplified Chinese), and `/ja/` (Japanese). For example, the English `/insights/magnetic-powder-brake-working-principle` has a Japanese equivalent at `/ja/insights/magnetic-powder-brake-working-principle`. Only English pages are listed below; prepend the locale prefix for the other languages.

## Company

- [Home](https://www.helistar.com.tw/): Overview of HELISTAR's torque and tension control solutions for R2R and automation machinery.
- [About Us](https://www.helistar.com.tw/about): Company background, manufacturing capabilities, and engineering/ODM services.
- [Contact](https://www.helistar.com.tw/contact): Direct inquiry for technical support, custom solutions, quotations, and replacement parts.
- [Catalog Request (E-Catalog)](https://www.helistar.com.tw/e-catalog): Request product catalogs and selection documents.

## Applications

Application overviews explaining how HELISTAR components solve tension control problems in specific R2R machine types.

- [Printing Machinery](https://www.helistar.com.tw/applications/printing-machinery): Stable web tension for roll-to-roll print registration and web handling.
- [Bag Making Machinery](https://www.helistar.com.tw/applications/bag-making-machinery): Tension control for accurate film feeding, sealing, and cutting.
- [Slitting Machines](https://www.helistar.com.tw/applications/slitting-machines): Tension control for high-speed slitting, edge quality, and rewind consistency.
- [Coating & Laminating Machines](https://www.helistar.com.tw/applications/coating-laminating-machines): Tension control for coating uniformity and laminating quality.
- [Rewinding & Unwinding Systems](https://www.helistar.com.tw/applications/rewinding-unwinding): Magnetic powder brake solutions for stable tension in R2R winding systems.

## Insights (Technical Articles)

Engineering articles on working principles, product comparison, troubleshooting, and selection.

- [What Is a Magnetic Powder Brake? Working Principle Explained](https://www.helistar.com.tw/insights/magnetic-powder-brake-working-principle): Internal structure and how torque is generated (proportional to coil current) in a magnetic powder brake.
- [How Magnetic Powder Clutches Work: Principles & Applications](https://www.helistar.com.tw/insights/magnetic-powder-clutch-working-principle): Working principle, structure, and advantages of magnetic powder clutches for tension control.
- [Powder Brake vs Electromagnetic Brake: Key Differences](https://www.helistar.com.tw/insights/powder-brake-vs-electromagnetic-brake): Torque characteristics, heat behavior, and response differences to help engineers choose the correct brake type.
- [Complete Tension Control System Overview](https://www.helistar.com.tw/insights/complete-tension-control-system-overview): How brakes, clutches, controllers, and sensors integrate into a full closed-loop tension control system.
- [Reliable Electromagnetic Clutch & Brake Integrated Solutions](https://www.helistar.com.tw/insights/electromagnetic-clutch-brake-solutions): Integrated electromagnetic clutch and brake solutions for industrial machinery.
- [Why Do Powder Brakes Overheat? Causes and Solutions](https://www.helistar.com.tw/insights/powder-brakes-overheating-causes-solutions): Causes of overheating in magnetic powder brakes and how to prevent it.
- [How to Fix Tension Fluctuation in Winding Applications](https://www.helistar.com.tw/insights/fix-tension-fluctuation-winding): Diagnosing and correcting web tension fluctuation in winding.
- [How to Stabilize Film Feeding in Rewinding](https://www.helistar.com.tw/insights/stabilize-film-feeding-rewinding): Stabilizing film transport in rewinding machines.
- [Best Powder Brakes for Printing Machines: Flexo, Gravure, Label](https://www.helistar.com.tw/insights/best-powder-brakes-printing-machines): Selection guide for magnetic powder brakes across flexo, gravure, and label printing.
- [Precision Tension Control for Slitting and Laminating Machines](https://www.helistar.com.tw/insights/tension-control-slitting-laminating-machines): Precision tension control approaches for slitting and laminating lines.
- [Tension Control Solutions for Winding and Rewinding](https://www.helistar.com.tw/insights/tension-control-winding-rewinding-systems): Tension control solutions for winding and rewinding systems.
- [Yield Optimization in the AI Era: Precision Tension Control for High-End T-Glass Weaving](https://www.helistar.com.tw/insights/ai-tension-control-t-glass-weaving): Precision tension control for high-end T-Glass weaving.
- [Pushing the 4.5µm Limit: Tension Management for Battery Foil Slitting](https://www.helistar.com.tw/insights/battery-foil-slitting-tension-management): Tension management architecture, selection, and setup for ultra-thin battery foil slitting.
- [How to Choose the Right Magnetic Powder Brake: Torque, Heat, Control, Application](https://www.helistar.com.tw/insights/how-to-choose-magnetic-powder-brake): Selection guide covering torque, heat dissipation, control method, and application match.
- [How to Select a Magnetic Powder Brake for Tension Control](https://www.helistar.com.tw/insights/select-magnetic-powder-brake-tension-control): Engineering selection guide for magnetic powder brakes in tension control.

## Products

Full product catalog. Each page lists type code, torque range, usage, specification, and dimensions. Torque in kgf·m or kgf·cm unless noted.

### Magnetic Powder Clutches

- [Counter-shaft Type Powder Clutch](https://www.helistar.com.tw/products/counter-shaft-type-powder-clutch): POC, 0.6–60 kgf·m.
- [Protrudent Shaft with Foot Type Powder Clutch](https://www.helistar.com.tw/products/protrudent-shaft-with-foot-type-powder-clutch): POC-FT, 1.2–60 kgf·m.
- [Hollow Shaft High-Radiation Type Powder Clutch](https://www.helistar.com.tw/products/hollow-shaft-high-radiation-type-powder-clutch): PHC, 1.2–20 kgf·m.
- [Micro Type Powder Clutch](https://www.helistar.com.tw/products/micro-type-powder-clutch): POC, 5–100 kgf·cm.

### Magnetic Powder Brakes

- [Protrudent Shaft Type Powder Brake](https://www.helistar.com.tw/products/protrudent-shaft-type-powder-brake): POB, 0.6–60 kgf·m.
- [Protrudent Shaft with Foot Type Powder Brake](https://www.helistar.com.tw/products/protrudent-shaft-with-foot-type-powder-brake): POB-FT, 1.2–60 kgf·m.
- [Protrudent Shaft Axial-Flow Type Powder Brake](https://www.helistar.com.tw/products/protrudent-shaft-axialflow-type-powder-brake): PFB, 1.2–60 kgf·m.
- [Hollow Shaft High-Radiation Type Powder Brake](https://www.helistar.com.tw/products/hollow-shaft-high-radiation-type-powder-brake): PHB, 1.2–20 kgf·m.
- [Hollow Shaft Type Powder Brake](https://www.helistar.com.tw/products/hollow-shaft-type-powder-brake): PLB, 0.3–200 kgf·m. Flagship tension control brake.
- [Low-Speed Protrudent Shaft Type Powder Brake](https://www.helistar.com.tw/products/low-speed-protrudent-shaft-type-powder-brake): PLBS, 1.2–200 kgf·m.
- [Low-Speed Hollow Shaft Torque-Arm Type Powder Brake](https://www.helistar.com.tw/products/low-speed-hollow-shaft-torque-arm-type-powder-brake): PLBT, 2.5–40 kgf·m.
- [Micro Type Powder Brake](https://www.helistar.com.tw/products/micro-type-powder-brake): POB, 5–50 kgf·cm.
- [Hollow Shaft with Foot Type Powder Brake](https://www.helistar.com.tw/products/hollow-shaft-with-foot-type-powder-brake): PLB-FT, 0.6–80 kgf·m.

### Tension Controllers, Power Suppliers & Sensors

- [PSV-3A Magnetic Power Supplier](https://www.helistar.com.tw/products/psv-3a-magnetic-power-supplier): PSV-3A, power supply for magnetic powder units.
- [PSV-3APS Magnetic Power Supplier](https://www.helistar.com.tw/products/psv-3aps-magnetic-power-supplier): PSV-3APS, power supply for magnetic powder units.
- [Calculational Tension Controller TCP-035](https://www.helistar.com.tw/products/calculational-tension-controller): TCP-035, taper/diameter-calculating tension controller.
- [Calculational Tension Controller TCP-035S](https://www.helistar.com.tw/products/calculational-tension-controller-s): TCP-035S.
- [Calculational Tension Controller TCP-040](https://www.helistar.com.tw/products/calculational-tension-controller-040): TCP-040.
- [Automatic Tension Controller TCP-818D](https://www.helistar.com.tw/products/automatic-tension-controller): TCP-818D, fully automatic closed-loop tension controller.
- [Bearing-Housing Type Tension Sensor (LCS)](https://www.helistar.com.tw/products/lcs-tension-sensor): LCS, 50–5000 N·m.
- [Hollow Shaft Type Tension Sensor (LCH)](https://www.helistar.com.tw/products/lch-tension-sensor): LCH, 300–500 N·m.
- [Roller Type Tension Sensor (LCR)](https://www.helistar.com.tw/products/lcr-tension-roller-sensor): LCR, 300–500 N·m.
- [Multi-point Pneumatic Disc Brake (PDB)](https://www.helistar.com.tw/products/pneumatic-disc-brake): PDB, 160–960 N·m.

### Electromagnetic Clutches

- [Electromagnetic Clutch, Flange Type (ECF)](https://www.helistar.com.tw/products/clutch-flange-type): ECF, 0.6–40 kgf·m.
- [Electromagnetic Clutch, Flange Type (ECF-1)](https://www.helistar.com.tw/products/clutch-flange-type-1): ECF-1, 0.6–40 kgf·m.
- [Electromagnetic Clutch, Flange Type (ECF-3)](https://www.helistar.com.tw/products/clutch-flange-type-3): ECF-3, 0.6–40 kgf·m.
- [Electromagnetic Clutch, Bearing Type (ECS)](https://www.helistar.com.tw/products/clutch-bearing-type): ECS, 0.6–200 kgf·m.
- [Electromagnetic Clutch, Bearing Type (ECS-1)](https://www.helistar.com.tw/products/clutch-bearing-type-1): ECS-1, 0.6–200 kgf·m.
- [Electromagnetic Clutch, Bearing Type (ECS-3)](https://www.helistar.com.tw/products/clutch-bearing-type-3): ECS-3, 0.6–40 kgf·m.
- [Fishing-Boat Clutch (ECS)](https://www.helistar.com.tw/products/clutch-fish-boat-type): ECS, 20–160 HP marine clutch.
- [Electromagnetic Clutch, Bearing Type, Small (SECS)](https://www.helistar.com.tw/products/clutch-bearing-type-s): SECS, 3.5–5 kgf·m.
- [Electromagnetic Tooth Clutch (ECTS/ECT)](https://www.helistar.com.tw/products/electromagnetic-tooth-clutch): ECTS-10S / ECT-10S, positive tooth-engagement clutch.
- [Electromagnetic Negative-Action Multi-Disc Safety Clutch (ERC)](https://www.helistar.com.tw/products/multi-disc-clutch): ERC, 5–25 kgf·m.

### Electromagnetic Brakes

- [Electromagnetic Brake, Flange Type (EBF)](https://www.helistar.com.tw/products/brake-flange-type): EBF, 0.6–40 kgf·m.
- [Electromagnetic Brake, Flange Type (EBF-1)](https://www.helistar.com.tw/products/brake-flange-type-1): EBF-1, 0.6–40 kgf·m.
- [Electromagnetic Brake, Flange Type (EBF-2)](https://www.helistar.com.tw/products/brake-flange-type-2): EBF-2, 0.6–40 kgf·m.
- [Electromagnetic Brake, Inner Flange Type (EBS)](https://www.helistar.com.tw/products/brake-flange-inside-type): EBS, 10–200 kgf·m.
- [Electromagnetic Brake, Inner Flange Type (EBS-1)](https://www.helistar.com.tw/products/brake-flange-inside-type-1): EBS-1, 10–200 kgf·m.
- [Electromagnetic Brake, Inner Flange Type (EBS-2)](https://www.helistar.com.tw/products/brake-flange-inside-type-2): EBS-2, 10–200 kgf·m.
- [Electromagnetic Negative-Action Spring-Applied Safety Brake (ERB)](https://www.helistar.com.tw/products/spring-applied-brake): ERB, fail-safe spring-applied brake.
- [Electromagnetic Negative-Action Spring-Applied Safety Brake (KSERB)](https://www.helistar.com.tw/products/spring-applied-brake-ks): KSERB-0.6, 12–90 V.
- [Electromagnetic Brake, Flange Type, Small (SEBF)](https://www.helistar.com.tw/products/brake-flange-type-s): SEBF, 2.5–5 kgf·m.

### Electromagnetic Clutch–Brake Units

- [Dual-Shaft Type Clutch–Brake Unit (EUDS)](https://www.helistar.com.tw/products/dual-shaft-type-clutch-brake-unit): EUDS, 0.6–60 kgf·m.
- [Single-Flange Type Clutch–Brake Unit (EUSF)](https://www.helistar.com.tw/products/single-flange-type-clutch-brake-unit): EUSF, 0.6–20 kgf·m.
- [Double-Flange Type Clutch–Brake Unit (EUDF)](https://www.helistar.com.tw/products/double-flange-type-clutch-brake-unit): EUDF, 0.6–20 kgf·m.
- [Tandem-Shaft Type Clutch–Brake Unit (EUTS)](https://www.helistar.com.tw/products/tandem-shaft-type-clutch-brake-unit): EUTS, 0.6–40 kgf·m.
- [Tandem-Shaft Type Double-Clutch Unit (EUDC)](https://www.helistar.com.tw/products/tandem-shaft-type-double-clutch-unit): EUDC, 0.6–40 kgf·m.
- [Hollow Shaft Type Clutch–Brake Unit (EUH)](https://www.helistar.com.tw/products/hollow-shaft-type-clutch-brake-unit): EUH, 2.5–60 kgf·m.

## Optional

- [Products (all)](https://www.helistar.com.tw/products): Full product listing page.
- [Product Usage Finder](https://www.helistar.com.tw/products-usage): Browse products by usage/function.
- [News](https://www.helistar.com.tw/news): Exhibitions and company news.
- [Privacy Policy](https://www.helistar.com.tw/privacy-policy): Website privacy policy.