Single-Screw Extruder Gearbox

KAIBO’s single-screw extruder gearbox delivers robust torque transmission for plastic extrusion systems. Featuring precision-ground gears, heavy-duty housing, and advanced lubrication, it ensures stable operation for granulation, film, and sheet extrusion. ISO 9001-certified, with custom solutions and fast delivery.

KAIBO Product Display Images- Single-Screw Extruder Gearbox

Product Overview

KAIBO’s Single-Screw Extruder Gearbox, an ISO 9001-certified solution custom-engineered for single-screw extruders (granulation lines, cast film systems, and sheet extrusion machines), addresses high-load power transmission challenges with unparalleled reliability. Crafted with 18CrNiMo7-6 precision gear grinding and a ductile iron housing, this gearbox ensures 98% operational efficiency, reducing energy costs by 18% in PP/PE granulation and enabling high-speed production at 200m/min for film extrusion. As a leading single-screw extruder gearbox manufacturer, KAIBO integrates axial load-resistant design to stabilize large-diameter screws, minimizing vibration and noise (≤75dB no-load) for continuous industrial applications demanding precision and durability.

Core Advantages

  • High-Strength Ductile Iron Housing: Engineered to resist deformation and corrosion, supporting heavy axial loads from single-screw extrusion.
  • Precision-Ground Alloy Gears: Heat-treated 18CrNiMo7-6 gears with involute tooth profiles ensure smooth transmission and minimal wear.
  • Pressurized Forced-Lubrication System: Advanced oil circulation reduces friction, enhances efficiency, and extends component life by 30%.
  • Single-Screw Specific Design: Tailored to handle high axial forces, stabilizing screws up to 120mm diameter for consistent extrusion.
  • Ultra-Low Noise Operation: ≤75dB (no-load at 1m) via optimized gear meshing and housing rigidity, meeting industrial noise standards.
  • Rigorous Quality Testing: Each gearbox undergoes dynamic load testing, thermal cycling, and vibration analysis for 10,000+ hours of maintenance-free operation.

Application Scenarios

  • PP/PE Granulation Lines: High-torque drive for single-screw pelletizers in recycling and resin production.
  • High-Speed Cast Film Extrusion: Precision speed control for film thickness uniformity in packaging and agricultural films.
  • ABS/PVC Sheet Extrusion: Heavy-load support for single-screw machines producing construction-grade sheets.
  • Bioplastic Extrusion: Energy-efficient drives for eco-friendly material processing with variable torque needs.
  • Medical Device Manufacturing: Low-noise, high-precision gearboxes for single-screw extrusion of medical-grade plastics.

Technical Specifications

ParameterTypical ValueNotes
Input Power1.5–110 kW (Fully Customizable)Suits small lab extruders to large industrial single-screw systems.
Input Speed≤3500 RPMCompatible with high-torque motors; supports variable speed drives.
Gear Ratio8–60 (Customizable)Multi-stage design for high torque at low speeds (ideal for thick sheets).
Output Torque10,000–80,000 N·m (Customizable)Powers single screws up to 150mm diameter in heavy-duty applications.
Output Speed30–1200 RPM (Ratio-Dependent)Adjusts for 20–200m/min production speeds in film and sheet extrusion.
Mounting MethodFlange (Standard); Custom ShaftQuick installation on standard extruders; retrofittable for non-standard setups.
Protection GradeIP55 (IP66 Optional)Dust/water protection; IP66 for harsh environments like outdoor plants.
Noise Level≤75 dB (No-load, 1m Distance)Ensures operator comfort in 24/7 production facilities.
Efficiency≥96% (Single-stage)High efficiency reduces energy consumption in continuous extrusion.

3-Step Quick Selection

  • Identify Extruder Type: Specify single-screw application (granulation, film, sheet) and screw diameter.
  • Share Operational Data: Provide input speed, required gear ratio, and expected output torque. Our engineers will recommend models within 24 hours.
  • Request Custom Solutions: For special needs (high-temperature resistance, corrosion-proof materials, non-standard interfaces), tailored designs with 4–6 week lead times.

Ready to Revitalize Your Extruder Process? Let's Talk

 🌎  Visit Our Website: https://kaiboi.com

 📧  Request A Quote: info@kaiboi.com

 📂  Free Download : Extruder Gearbox Selection Manual.PDF

FAQs

Q1: How to select the right single-screw extruder gearbox?

A: Choose a gearbox by analyzing material needs (e.g., high torque for PP/PE granulation), matching input power (1.5–110 kW) and output speed (30–1200 RPM) to your extruder, and prioritizing IP66 protection for harsh environments. KAIBO’s 3-step process delivers custom solutions within 24h.
 

Q2: What maintenance ensures long-term reliability?

A: Maintain gearboxes by replacing ISO 680 EP oil every 500–800h (new units) or annually, monthly checking for gear/bearing wear, monitoring oil temp (≤70°C), and cleaning cooling jackets quarterly. Proactive care extends life by 30%.
 

Q3: How does KAIBO’s design reduce noise?

A: KAIBO uses precision-ground involute gears, ductile iron housing, and forced lubrication to achieve ≤75dB noise. Features like SKF bearings and EU-compliant design suit noise-sensitive applications.