Service

Every incoming material batch is inspected before it is released for production. When materials arrive at our factory, the warehouse team verifies the supplier, purchase order, material grade, specification, quantity, batch number, packaging condition and accompanying documents. Each batch is then assigned an internal lot number and placed under quarantine status to prevent unverified materials from entering production.

Our quality team takes representative samples according to the material type and inspection plan. Rubber, chemicals, reinforcement fabrics and tensile cords are tested using material-specific methods, which may include appearance, identity, density, moisture, ash content, tensile strength, elongation and surface condition.

After testing, a quality engineer compares the results with the approved purchase specification, internal quality requirements and applicable customer standards. Qualified materials are released to approved storage for production use. Nonconforming materials are identified, segregated and reviewed for additional testing, supplier return, authorized downgraded use or rejection.

Before final release, each finished belt is checked against the production order and customer specification. Our quality team confirms the belt model, profile, material grade, dimensions, quantity, marking, packaging requirements and any special performance requirements specified by the customer.

The belt is then inspected for surface condition, profile accuracy, top width, belt height, effective or outside length, length tolerance, cog dimensions, rib dimensions, tooth pitch and printed batch identification. Depending on the belt type and inspection plan, performance testing may include tensile strength, elongation, cord adhesion, fabric adhesion, hardness, abrasion resistance, heat ageing, oil resistance, low-temperature flexibility, fatigue performance and electrical resistance.

A quality engineer reviews the dimensional records, test results, production data and product identification before issuing the inspection report and release decision. Qualified belts are transferred to finished goods storage. Before shipment, the model, quantity, batch code, labels, packaging condition, packing list and required documents are checked again. Products that fail inspection are segregated for repair, reprocessing, additional testing, remanufacture or rejection, and reworked products must pass reinspection before shipment.

TRANSCO tests the main rubber properties that affect belt strength, flexibility, wear resistance and dimensional stability. Typical test items include tensile strength, elongation at break, hardness, density and abrasion resistance.

Tensile strength is normally recorded in MPa, elongation is recorded as a percentage, and hardness is recorded using the specified Shore scale. The required values are selected according to the rubber compound, belt construction, customer requirement and intended application. Different V-belts, timing belts and ribbed belts do not use one universal acceptance value.

Rubber abrasion resistance is tested by measuring how much material is lost under controlled rubbing conditions. The result may be reported as volume loss or as an abrasion resistance index, depending on the selected test method.

Lower or more stable material loss usually indicates better resistance to repeated surface wear under the same laboratory conditions. However, laboratory abrasion data is used mainly for compound comparison and quality control. Actual belt wear also depends on pulley condition, belt tension, alignment, speed, load, contamination and operating temperature.

TRANSCO selects fatigue and dynamic tests according to the belt type and operating application. Automotive V-belts, industrial V-belts, timing belts and PK ribbed belts have different profiles, constructions and working conditions, so they do not use the same test arrangement.

A dynamic test may record the pulley configuration, belt speed, applied load, operating time, temperature and final belt condition. Fatigue testing is normally used for product development, type verification, periodic quality checks or customer-specific requirements rather than as a routine test for every individual belt.

A TRANSCO belt inspection report can include the product model, belt profile, production batch, sample number, inspection date, test method, acceptance requirement and actual measured result.

Depending on the belt type, the report may record belt length, length tolerance, top width, belt height, tensile strength, elongation, hardness, adhesion, abrasion resistance, Mooney viscosity, cure data or electrical resistance. The report also includes the inspection conclusion and release status. This allows the tested sample to be connected with the relevant production batch and customer order.

Each rubber compound batch is assigned a traceable batch number linked to the approved formulation, mixing date, production equipment, operator and incoming material lots. A representative sample is collected to verify the consistency of the uncured compound before it proceeds to the next manufacturing stage.

Our laboratory checks the compound for appearance, contamination, density and processing consistency. Mooney viscosity testing is used to evaluate processing stability, while cure characteristics testing measures parameters such as minimum torque, maximum torque, scorch time and optimum cure time. A controlled rubber test sheet may also be vulcanized to verify hardness, tensile strength, elongation and abrasion resistance.

During belt production, our inspectors monitor tensile cord arrangement, cord tension, fabric wrapping, belt profile, mold loading, cog or tooth formation, rib position and dimensional consistency. Vulcanization temperature, pressure and time are recorded according to the approved process specification. A quality engineer reviews the compound data and production records before releasing the batch. Any nonconforming batch is placed on hold for rework, additional testing, authorized downgrade or rejection, followed by reinspection where necessary.

TRANSCO inspects V-belt dimensions according to the customer specification, approved product drawing and applicable belt standard. For classical and narrow V-belts, ISO 4184 can be used as a dimensional reference for common sections such as Z, A, B, C, SPZ, SPA, SPB and SPC.

The inspection normally records the belt profile, top width, belt height, datum or effective length, measured length and length tolerance. The measured data must meet the requirements confirmed for the specific belt model before the product is released.

TRANSCO checks each rubber mixing batch before it is released to the next production stage. The compound batch is identified by formulation, mixing date, equipment, operator and related raw material lots.

Mooney viscosity is used to evaluate the processing consistency of uncured rubber. Cure testing is used to measure minimum torque, maximum torque, scorch time and optimum cure time. These results are compared with the approved compound control range. A batch with abnormal processing or curing data is placed on hold for review, additional testing, rework or rejection.

Anti-static belt performance is verified by measuring electrical resistance under controlled test conditions. The test confirms whether the belt can safely dissipate static electricity instead of allowing electrical charge to build up during operation.

The inspection record should identify the belt model, test method, measured resistance, sample batch and acceptance requirement. Anti-static performance is tested only when it is required by the belt specification, application or customer order. It should not be claimed only from the belt material, color or appearance.