Siboasi S3169 Tension Head Help

SIBOASI S3169 Stringing Machine | Tension Head Full Operation & Troubleshooting Guide

SIBOASI S3169 is a tournament-grade professional electronic stringing machine widely used in professional racket shops, official competitions and high-standard studio stringing work. The tension head is its core precision component, responsible for constant tension locking, real-time pound compensation and accurate string pulling. Stable tension head operation directly determines stringing accuracy, racket frame safety and string bed consistency. This guide covers structure explanation, standard calibration, daily operation, common faults and maintenance solutions for the S3169 tension head.

1. S3169 Tension Head Core Structure & Working Principle

The S3169 tension head adopts high-precision electronic constant-tension control system with dual sensor feedback and automatic pressure compensation module. Different from ordinary household stringing machines, it supports real-time tension correction during the pulling process to eliminate tension loss caused by string creep and elastic deformation.

Key Components:

• Precision tension sensor: Monitors real-time pulling force with 0.1-pound accurate sensing • Stepper motor drive module: Stable linear pulling without jitter or overshoot • Automatic locking chuck: Anti-slip clamping structure to prevent string slipping during tension holding • Creep compensation system: Automatically supplements tension loss caused by string stretching • Pressure holding buffer module: Avoids instantaneous tension impact to protect racket frames

2. Standard Tension Head Calibration Procedure (Official Standard)

Regular calibration is required to ensure tournament-level precision. It is recommended to calibrate every 300 stringing cycles or after long-distance transportation.

Step 1: Preheat the machine Power on and idle for 3–5 minutes to stabilize the motor and sensor working temperature, avoiding tension deviation caused by cold start.

Step 2: Zero reset Release all tension, make the tension head return to the initial zero position, clear residual tension data, and confirm the screen zero value is normal.

Step 3: Standard pound test Set standard test tension (25 lbs / 28 lbs / 30 lbs). Perform empty pulling test without racket strings. Observe whether the actual locking tension matches the set value.

Step 4: Fine adjustment compensation If the error exceeds ±0.5 lbs, enter the background calibration program to fine-tune the sensor coefficient until the tension error is controlled within the official standard tolerance (±0.3 lbs).

Step 5: Verify creep compensation Hold tension for 10 seconds. The machine should automatically compensate and maintain stable poundage without continuous drop or overshoot rebound.

3. Standard Operation Rules for Tension Head

✅ Uniform string clamping: Place the string flat in the middle of the chuck, avoid diagonal clamping or multi-layer stacking, which will cause uneven stress and tension deviation.

✅ Gradual tension pulling: Do not manually pull the string violently before machine tensioning; pre-release slack manually to prevent instantaneous overload impact on the tension head sensor.

✅ Standard tension holding time: Keep 8–12 seconds holding time for badminton strings and 10–15 seconds for tennis strings to ensure stable string forming.

✅ One-key reset after single pull: After completing each string pulling and knotting, reset the tension head in place to avoid long-term single-side stress deformation.

4. Common Tension Head Faults & Quick Solutions

Fault 1: Tension poundage keeps dropping after locking

Causes: Insufficient creep compensation parameter, string slippage, or sensor aging sensitivity decrease Solutions: Recalibrate tension coefficients, clean chuck rubber pad dust, increase compensation value appropriately

Fault 2: Tension overshoot (actual pound higher than setting)

Causes: Fast pulling speed, buffer module fatigue, zero drift Solutions: Reduce pulling speed, reset zero position, replace aging buffer gasket

Fault 3: Chuck slips during tension holding

Causes: Clamping pad wear, string oil contamination, uneven clamping position Solutions: Clean oil stains with alcohol, replace wear-resistant rubber pads, re-clamp flatly

Fault 4: Tension head jitters during pulling

Causes: Motor track dust accumulation, mechanical lubrication failure, unstable power supply Solutions: Clean sliding track, add special lubricating oil, stabilize voltage input

Fault 5: Large tension error after long working hours

Causes: Thermal drift of sensor after high-frequency continuous work Solutions: Stop working for 10 minutes to cool down, perform secondary zero calibration

5. Daily Maintenance for Tension Head

• Daily cleaning: Wipe chuck, track and sensor surface with dry cloth after daily work to remove string dust and rubber debris

• Weekly lubrication: Lubricate tension head sliding track and transmission gear with professional low-viscosity lubricant

• Monthly calibration: Perform full tension calibration every month for commercial high-frequency use

• Avoid overload: Do not exceed 35 lbs long-term pulling to prevent sensor fatigue damage

• Moisture-proof storage: Keep the tension head dry; humid environment will cause sensor drift and circuit failure

6. Professional Technical Advantages of S3169 Tension Head

Compared with ordinary civilian stringing machines, the S3169 tournament-level tension head has three core advantages:

1. Dynamic real-time compensation: Continuously supplement tension loss during string creep, ensuring every string maintains consistent poundage

2. Anti-shock pulling algorithm: Smooth linear pulling without instantaneous impact, effectively protecting carbon racket frames from deformation or cracking

3. High-temperature stable sensor: Adopts industrial-grade temperature-resistant components, maintaining precision even after all-day high-intensity commercial operation

7. Applicable Scenarios & Standard Parameters

Tension range: 5–35 lbs, fully compatible with badminton and tennis racket stringing

Tension accuracy: ±0.3 lbs (tournament official standard)

Compensation mode: Automatic creep compensation + manual fine-tuning dual mode

Best for: Professional racket shops, tournament official stringing, high-end player customized stringing