As automation equipment continues to evolve toward higher speed, higher precision, and longer service life, linear modules have become one of the most critical motion components in modern machinery. When selecting a linear actuator, engineers must evaluate not only speed, accuracy, and load capacity, but also structural rigidity, environmental protection, service life, and maintenance cost.

Gaogong Intelligent Transmission, a specialist in precision motion systems, offers two complete product families — the GTH Series (Standard Environment) and the GCH Series (Clean Room Environment). With a full model matrix covering light‑duty to heavy‑duty applications, these ball screw linear modules deliver reliable performance across diverse industrial environments.

🔍 1. Key Selection Logic for Ball Screw Linear Modules

When choosing a linear module, engineers typically evaluate the following:

1. Positioning Accuracy & Repeatability

• Ball screw grade (C5 / C7)

• Repeatability stability at ±0.01 mm

• Long‑stroke cumulative error control

2. Rigidity & Load Capacity

• Linear guide size and number of sliders

• Body stiffness (bending & torsion resistance)

• Stability under high acceleration

3. Environmental Protection

• Standard vs. clean room requirements

• Need for semi‑closed or fully enclosed structure

• Resistance to dust, oil mist, chemicals

4. Speed, Noise & Thermal Behavior

• Screw lead selection

• Vibration suppression at high speed

• Heat generation and thermal expansion control

5. Installation & Maintenance

• Multi‑side mounting options

• Flexible motor mounting configurations

• Lubrication and maintenance intervals

The GTH and GCH series are engineered around these core criteria to meet the needs of global automation equipment manufacturers.

⚙️ 2. GTH Series (Standard Environment)

High‑Performance Semi‑Closed Ball Screw Linear Modules

The GTH Series adopts a semi‑closed aluminum structure, balancing protection, heat dissipation, and cost efficiency — making it a mainstream choice for precision automation.

📌 GTH Series Model Lineup

Small Size

• GTH6A – 65 mm width, 1000 mm stroke, 20 kg load

• GTH7A – 75 mm width, 1000 mm stroke, 30 kg load

• GTH9A – 90 mm width, 1000 mm stroke, 40 kg load

Medium Size

• GTH10 – 102 mm width, 1050 mm stroke, 50 kg load

• GTH12 – 102 mm width, 1050 mm stroke, 50 kg load

• GTH13 – 135 mm width, 1050 mm stroke, 70 kg load

• GTH14 – 135 mm width, 1050 mm stroke, 110 kg load

• GTH12A – 120 mm width, 1050 mm stroke, 85 kg load

• GTH14A – 140 mm width, 1050 mm stroke, 120 kg load

Large Size

• GTH17 – 170 mm width, 1250 mm stroke, 120 kg load

• GTH22 – 220 mm width, 1500 mm stroke, 150 kg load

• GTH17M – 170 mm width, 2200 mm stroke, 120 kg load

• GTH22M – 220 mm width, 2400 mm stroke, 130 kg load

Typical Applications

• Dispensing, soldering, screw‑driving

• Vision inspection, autofocus stages

• Medical analyzers

• Laboratory automation

• Light‑duty pick‑and‑place systems

🛡️ 3. GCH Series (Clean Room Environment)

Fully Enclosed Ball Screw Linear Modules for Contamination‑Sensitive Applications

The GCH Series is designed with a fully enclosed structure, ideal for environments requiring dust‑free, oil‑free, and particle‑controlled operation.

📌 GCH Series Model Lineup

Small Size

• GCH4A – 45 mm width, 800 mm stroke, 10 kg load

• GCH6A – 65 mm width, 800 mm stroke, 30 kg load

Medium Size

• GCH10 – 102 mm width, 1050 mm stroke, 50 kg load

• GCH12 – 102 mm width, 1050 mm stroke, 50 kg load

• GCH14 – 135 mm width, 1050 mm stroke, 110 kg load

• GCH12A – 120 mm width, 1050 mm stroke, 85 kg load

• GCH14A – 140 mm width, 1050 mm stroke, 120 kg load

Large Size

• GCH17 – 170 mm width, 1250 mm stroke, 120 kg load

• GCH22 – 220 mm width, 1500 mm stroke, 150 kg load

Typical Applications

• Semiconductor equipment

• Laser processing platforms

• Precision measurement & optical systems

• Medical and bio‑analysis instruments

• Dusty, oily, or corrosive industrial environments

🧩 4. Why Engineers Choose Gaogong’s GTH & GCH Series

1. Complete Model Matrix

Widths from 45–220 mm, loads from 10–150 kg, strokes up to 2400 mm — covering nearly all automation scenarios.

2. Proven Mechanical Design

High‑precision linear guides + preloaded ball screws + optimized aluminum structure ensure low vibration and high repeatability.

3. Strict Quality Control

• Preloaded screws and guides

• Component life‑cycle testing

• Full‑stroke accuracy inspection before shipment

4. Modular & Customizable

• Multiple motor mounting options

• Flexible stroke customization

• OEM/ODM support

📌 5. Conclusion

As automation equipment becomes more advanced, selecting the right linear module is no longer just about comparing parameters — it requires evaluating structure, environment, durability, and long‑term cost.

Gaogong Intelligent Transmission’s GTH and GCH ball screw linear modules provide a robust, reliable, and scalable motion platform for global equipment manufacturers, ensuring long‑term stability and high‑precision performance.