Overview
The Watlow STB1A1A1-A48 THINBAND heater is an industrial-grade heating element designed for barrel and nozzle heating applications. As Watlow’s patented redesign of the traditional mica band heater, this unit delivers reliable performance in plastic processing, injection molding, and extrusion equipment. The flexible, one-piece construction and Quick Clamp latching system enable tool-free installation without requiring barrel removal—reducing maintenance time and equipment downtime.
Key Features
- Flexible, one-piece design opens to full barrel diameter without internal damage
- Quick Clamp latching device enables tool-free installation and removal
- Drop-in replacement for standard mica band heaters in compatible applications
- Rated for continuous heating in plastic processing, extrusion, and injection molding systems
- Robust mica insulation withstands repeated thermal cycling
Technical Specifications
- Input Voltage: 240V AC
- Power Rating: 100W
- Heater Type: THINBAND Mica Band (Type A)
- Width: 1 inch (25.4 mm)
- Watt Density: 44 W/in² (6.8 W/cm²)
- Design Type: Flexible one-piece band
- Mounting: Quick Clamp latching (no tools required)
- Lead Configuration: A48 (as specified)
Typical Applications
- Plastic extruder barrel heating on injection molding equipment
- Nozzle preheating and temperature maintenance
- Blow molding machine heating elements
- Industrial film extrusion systems
- Replacement for worn or failed mica band heaters
Compatibility & Replacements
Compatible With
- Plastic processing equipment with standard barrel diameters
- Injection molding machines
- Extrusion equipment with compatible mounting provisions
- Equipment designed for THINBAND or standard mica band heaters
Replaces / Drop-In Replacement For
- Legacy mica band heaters (Type A configuration)
- Worn STB1A1A1 THINBAND units
- Compatible standard mica band models with identical barrel diameter and lead configuration
Works With
- Watlow heating controllers and temperature control systems
- Standard industrial temperature controllers with 240V AC input
- Thermocouples and RTD sensors for closed-loop temperature monitoring
- Plastic processing equipment OEM control systems
















