Technical Specifications: 4TY0082 Blade Adjustment Mechanism Link Pin

The Link Pin 4TY0082 is a specialized spare part designed for the SAF30-21.1-1 Moving Blade Adjustable Axial Induced Draft (ID) Fan. It serves as the critical force-transmission component connecting the hydraulic adjustment device to the blade transmission mechanism. Specifically installed at the junction of the blade-root adjustment rod and the push-disk slider, it enables precise blade angle modulation to adapt to varying boiler loads.

I. Product Overview

The 4TY0082 pin works in coordination with components such as the Control Shaft (1TY0166) and Push Rod (S1GA1865). When the electric actuator drives the hydraulic unit, the pin transmits the resulting force to rotate the blades at small angles, thereby regulating fan volume and pressure.

• Material & Durability: Manufactured from high-strength alloy steel, precision-machined to withstand temperatures from -40°C to +120°C.

• Environmental Resistance: Specially treated to resist erosion from dust-laden air and chemical degradation from long-term exposure to lithium-based grease.

• System Synergy: This part is a core component of a comprehensive adjustment assembly. For optimal performance, it must be used with the following matching parts:

II. Technical Features and Advantages

1. Optimized Material Strength and Weather Resistance

The link pin is fabricated from high-strength alloy steel with a verified allowable shear stress exceeding 80 MPa. This ensures the pin can handle high shear loads during adjustment without deformation or fracture. Its stable mechanical properties across a wide temperature range prevent embrittlement in cold starts or creep deformation during high-load operations.

2. Precision Machining for Small-Angle Oscillation

Using high-precision CNC machining, the dimensional tolerances are strictly controlled within ±0.02 mm. This precision complies with the Installation and Maintenance Manual for SAF Moving Blade Adjustable Axial Fans.

• Reduced Friction: Optimized clearance between the pin and mating parts ensures flexibility during small-angle oscillations.

• Zero Lag: When paired with the Push Rod Bushing (4TY1079), it minimizes frictional resistance, ensuring the fan operates within its high-efficiency zone through precise angle control.

3. Rigorous Quality Control

As a professional power plant supplier, we implement a full-process QC system:

• Spectroscopic Analysis: Verifies chemical composition of raw steel.

• Geometric Tolerance Checks: Ensures precision matching with OEM standards.

• Integrity Testing: Includes shear strength testing and surface defect detection to ensure parts are free of cracks, burrs, or rust.

III. Application Scenarios

1. Specialized Maintenance for SAF30-21.1-1 Fans

The reliability of the blade adjustment mechanism directly impacts boiler ventilation efficiency. During scheduled outages or adjustment failures, the 4TY0082 pin is a primary inspection point. It must be replaced if there is evidence of surface wear, bending, or if blade adjustment becomes sluggish.

2. General Compatibility for SAF Series Fans

Beyond the SAF30-21.1-1, this pin serves as a high-quality alternative for other models within the SAF axial fan family operating under similar conditions. It effectively resolves common issues such as transmission failure and inflexible oscillation in the adjustment mechanism.

3. Emergency Replacement under Harsh Conditions

In scenarios with high dust concentration or frequent load fluctuations, the pin’s wear-resistant and anti-shear properties reduce the probability of recurring faults. It serves as a vital emergency spare part to minimize unplanned downtime.

IV. Technical Data Summary Table

HKZX-2026-01-23

Would you like me to prepare a specialized installation guide or a maintenance torque table for this adjustment mechanism?