Product Overview

The KR‑846 random tumble pilling tester is specialised laboratory equipment used to assess fuzzing and pilling‑prone behaviour for woven, knitted, wool‑blend and synthetic textiles. Available in two hardware variants: KR‑846A (2‑chamber) and KR‑846B (4‑chamber).

Under controlled compressed‑air conditions, fabric specimens together with standard grey cotton sliver are placed inside cork‑lined cylindrical chambers. High‑speed impellers drive random multi‑direction tumbling and friction. After pre‑set running duration, operators visually inspect surface condition and assign pilling‑grade against standard reference images. This instrument complies with GB/T 4802.4, ISO 12945‑3, ASTM‑D3512 and ASTM‑D1375. It is widely used within textile mills, garment‑making factories, home‑textile manufacturers, material‑R&D centres and accredited third‑party testing institutes for raw‑material screening and finished‑fabric quality auditing.

Core Product Competitive Advantages

1. Selectable 2‑Chamber / 4‑Chamber Configurations for Different Throughput Needs Users can pick 2‑chamber KR‑846A for low‑volume lab work, or 4‑chamber KR‑846B for high‑batch‑capacity QC‑laboratories. Each individual drum adopts standard‑size inner cavity and impeller dimensions, ensuring identical test‑conditions across chambers for reliable parallel‑sample comparison.
2. Touch‑Screen HMI with Full‑Programmable Timing Management Colour touch‑screen graphical interface supports Chinese‑English bilingual operation. Timing range covers 1‑999 999 minutes. One‑touch start triggers simultaneous activation of motor and air‑supply system. Once scheduled runtime expires, machine auto‑stops and buzzer gives audible completion‑alert, lowering manual‑operation workload.
3. Safety‑Focused Interlock Door‑Sensor Protection Built‑in door‑position detection sensor. Whenever test‑chamber door is opened during running cycles, motor and air‑supply will immediately halt. It effectively prevents accidental injury caused by rotating impellers and improves overall lab‑operation safety.
4. Stable Low‑Noise Rotary‑Drive & Precise Air‑Pressure Regulation Pulley‑transmission power‑unit delivers steady 1200 r/min rotational‑speed with minimal mechanical vibration and running noise. Equipped with pressure‑gauge and regulating valve; chamber working pressure can be precisely adjusted within 14‑21 kPa (2‑3 psi) to satisfy different standard‑specified test‑pressure requirements. Internal observation lighting assists post‑test visual inspection without opening the chamber door.
5. Modular Consumable‑Friendly Mechanical Layout Cork liners and stirring‑impeller assemblies can be quickly disassembled and replaced. Instrument structure simplifies regular cleaning of fibre lint residues accumulated after repeated tumble‑testing cycles.

Complete Technical Parameter Table