High Load Long Stroke Semi-closed Belt Slide Module

Maximum horizontal load 20KG

Model: FSKT-120

Semi-dense belt module

Repeat positioning accuracy: ±0.05 mm

Customizable stroke: 50-3000mm

Synchronous belt stroke: S3M-20

Synchronous belt lead: 150 mm

Maximum speed: 2000 mm/s

FSKT-120 High-load Long-travel Semi-enclosed Belt Sliding Module Introduction

FSKT-120 is a belt-driven linear module designed for heavy-load and long-distance automation 

scenarios. It adopts a semi-enclosed protection structure to balance high-speed operation and basic 

dust prevention requirements. Its core features are as follows:

🔧 ‌I. Core structure and design‌

‌Synchronous belt drive system‌: equipped with low backlash synchronous belt and high-precision pulley 

set, supports high-speed linear motion (maximum speed ≥5m/s), suitable for dynamic applications such 

as logistics sorting or continuous feeding‌

‌Semi-sealed protection design‌: The top flexible dust barrier combined with the labyrinth side seal 

effectively blocks dust intrusion, with a protection level of IP40, suitable for slightly polluted environments‌

‌High rigidity and lightweight frame‌: One-piece aluminum alloy base (30% weight reduction), enhances 

structural stability and suppresses high-speed vibration, and surface anodizing improves durability‌

📊 ‌II. Key performance parameters‌

‌Parameters‌ ‌                             Specification range‌

‌Maximum load‌                         50–100kg (horizontally installed)

‌Effective stroke‌                        300–8500mm (customizable)

‌Repeat positioning accuracy    ±0.05mm

‌Protection level‌                        IP40 (standard)

Note: For ultra-long travel (>3m), additional support rails are required to prevent belt sagging

⚙️ ‌III. Technical advantages‌

‌High-speed and low-noise operation‌: extremely low friction coefficient, noise ≤50dB, suitable for quiet 

environments such as medical equipment or laboratories‌

‌Modular expansion‌: compatible with direct connection of stepper/servo motors, supports multi-axis 

system splicing, and simplifies industrial automation integration‌

‌IV. Typical application scenarios‌

‌Heavy-duty logistics transmission‌: high-speed handling of express sorting lines (load ≤100kg, travel up 

to 8.5m)‌

‌Industrial automation assembly‌: PCB board assembly line transfer or packaging machinery positioning 

platform‌

‌Long-travel and light-load scenarios‌: replace traditional chain drive mechanisms to reduce maintenance 

costs‌

The High Load Long Stroke Semi-closed Belt Slide Module FSKT-120 is a high-load, long-stroke semi

-closed belt slide module designed for heavy-duty industrial automation applications. Its semi-enclosed 

structure effectively protects against dust and foreign matter intrusion, ensuring long-term stable 

operation in harsh working conditions. The module utilizes a high-rigidity synchronous belt drive, 

supporting large loads (refer to the technical documentation for specific parameters) and long strokes. 

Combining high precision and durability, it is suitable for applications with stringent load capacity and 

stroke requirements, such as logistics sorting, heavy assembly, and machine tool loading and unloading.

The FSKT-120 is an industrial-grade, belt-driven linear module with a semi-enclosed design, specifically 

developed for high-load, long-stroke applications. Its key features include:

Structural Design: The semi-enclosed housing effectively protects against dust, and the reinforced dual

-guide rail structure ensures a 60kg horizontal load capacity.

Motion Performance: Standard travel ranges from 50-1050mm (customizable), coupled with a high-

precision synchronous belt drive, achieves repeatability of ±0.03mm.

Drive Compatibility: Compatible with stepper and servo motors, supporting a wide voltage input range 

of 48-100V.

Expanded Functionality: Optional communication modules and auxiliary power connectors facilitate 

system integration.

This module is suitable for industrial automation applications requiring long-distance, precise transmiss

ion, such as semiconductor equipment and laser processing.

The High-Load, Long-Stroke Semi-closed Belt Slide Module FSKT-120 offers the following key 

advantages:

High-Load and Long-Stroke Design

Utilizing an enhanced synchronous belt drive and reinforced guide rail structure, it supports load 

capacities exceeding 36.2 kg and a travel range of 50-4000 mm (up to 8 m with special assembly), 

meeting the needs of handling large workpieces.

Semi-Enclosed Protection and Efficient Drive

The semi-enclosed housing effectively blocks dust and oil mist while maintaining the efficient drive of 

the PU synchronous belt (efficiency exceeding 95%). With a maximum speed of 3 m/s, it is suitable for 

high-speed reciprocating motion.

Precise Positioning and Modular Expansion

Repeatability of ±0.05 mm is achieved, and multi-axis combinations (such as XY gantries and cantilever 

configurations) are supported, allowing for flexible integration into automated production lines.

Industrial-Grade Durability

The aluminum alloy body features an anti-corrosion coating, and the guide rails utilize standard 20 mm 

linear guides (externally mounted). The lifespan exceeds 5000 hours and is suitable for operating in 

environments ranging from -20°C to 80°C.

Low-Cost Maintenance

The self-lubricating design reduces maintenance frequency, and the modular structure simplifies 

installation and maintenance, resulting in excellent cost-effectiveness over long-term use.

The FSKT-120 High Load Long Stroke Semi-closed Belt Slide Module is a synchronous belt drive linear modul

e designed specifically for high-load, long-stroke automation applications. It features high rigidity, stable op

eration, and excellent protection, making it suitable for precision motion control scenarios such as industrial

 robots, CNC equipment, and inspection platforms.

🔧 Core Features and Technical Highlights

1. High Load Capacity: Utilizing high-strength aluminum alloy profiles and a precision guide rail structure, it 

can withstand rated loads exceeding 120kg, stably supporting heavy-duty tooling or actuators and meeting 

industrial-grade heavy-duty requirements.

2. Long Stroke Adaptability: Supports a maximum stroke of over 2 meters (specific model configuration requ

ired). Optimized synchronous belt pretensioning and support structure effectively reduce vibration and offs

et during long-distance operation, ensuring positioning accuracy.

3. Semi-enclosed Structure Design: The module adopts a semi-enclosed protective cover, partially shielding 

the synchronous belt and guide rail, addressing dust, chip, and heat dissipation requirements. Suitable for 

moderately harsh environments with flying debris, such as metal processing and laser cutting.

4. High-Precision Transmission System: Equipped with high-precision linear guide rails, achieving a repeata

bility accuracy of ±0.02mm. Utilizes high-quality polyurethane synchronous belts with a steel wire core, off

ering high tensile strength, smooth transmission, and low noise. Optional origin/limit sensors are available, 

supporting seamless integration with PLCs and motion controllers.

5. Modular Installation for Easy Integration: The base has pre-drilled standard mounting holes, supporting 

multi-axis combinations (such as XY, XYZ platforms), facilitating rapid integration into automated production

 lines or non-standard equipment.

6. Compatible with Multiple Drive Methods: Optional stepper motors and servo motors can be directly conne

cted or side-mounted. Standardized interfaces ensure compatibility with mainstream motor brands (such as

 Panasonic, Yaskawa, Leadshine, etc.). 🏭 Typical Application Scenarios

Table

 Application Areas Usage Requirements Advantages

CNC Machine Tool Loading and Unloading

Long-stroke handling, stable conveying

High-rigidity structure ensures reliable continuous operation

Vision Inspection Platform

High-precision moving platform

Low-vibration operation improves image acquisition accuracy

Laser Welding/Cutting Equipment

Carries the reciprocating motion of the laser head assembly

Semi-enclosed design prevents dust contamination of transmission components

Automated Assembly Line

Multi-station material transfer

Modular design shortens equipment development cycle

⚙️ Selection Recommendations and Precautions

Load Matching: The actual load should not exceed 80% of the rated value to avoid long-term full load affectin

g lifespan.

Speed Control: The maximum operating speed is usually 1.5m/s. Pay attention to acceleration and decelerat

ion curve settings during high-speed operation to prevent impact.

Lubrication and Maintenance: Regularly lubricate the guide rails (lithium-based grease is recommended) to 

extend service life. Environmental adaptability: While offering some protection, it is not suitable for environ

ments with strong corrosion, high humidity, or water washing; a protective cover should be installed if neces

sary.

This module is a mid-to-high-end model in the FSKT series, commonly used in industrial scenarios with high

 requirements for stability and stroke, and is an economical and efficient solution to replace traditional ball 

screw modules.