Product Overview

The KR‑806B digital yarn twist analyser is a specialised textile laboratory instrument designed for measuring twist‑related indicators of single‑strand yarn, folded‑ply yarn and other spun yarn varieties. It supports multiple internationally‑recognised test workflows: direct‑counting technique, single‑cycle untwist‑retwist, maximum‑elongation untwisting and triple reverse‑twist‑recovery testing.

Beyond basic twist‑per‑unit‑length readings, the equipment captures untwisting‑induced length‑variation values and yarn twist‑shrinkage data. It delivers objective quantitative evidence for spinning‑mill quality audits, raw‑material incoming verification and textile‑process research. The unit complies with GB/T 2543.1‑2001, GB/T 2543.2‑2001, FZ/T 10001‑92, ISO 2061 and ASTM D1422 test specifications.

Core Product Competitive Advantages

1. Multi‑Mode Programmable Test Workflows Pre‑configured test algorithms cover six common industrial test approaches. Operators quickly switch test modes via panel settings to accommodate single yarn, plied yarn and open‑end spun‑yarn samples without hardware modification, satisfying diverse spinning‑lab evaluation demands.
2. Flexible Specimen‑Length & Wide‑Range Twist Measurement Seven standard gauge‑length options: 10 mm, 25 mm, 50 mm, 100 mm, 200 mm, 250 mm, 500 mm. Twist measuring scope reaches 1‑6000 twists per 10 cm or per metre. It handles low‑twist coarse yarn as well as high‑twist fine‑denier filament yarn efficiently.
3. Balanced‑Swing Pre‑Tension Weight System Horizontal‑pulley balance‑swing mechanism applies calibrated pre‑tension via a complete set of slot‑type hanging weights. Pre‑tension force ranges from 0.5 cN up to 171.5 cN in discrete increments. Appropriate tension keeps yarn samples straight without over‑stretching, eliminating measurement deviation caused by slack or over‑tensioned specimens.
4. Adjustable Rotational Speed & Dual‑Scale Displacement Indicator Rotary‑clamp speed can be continuously set between 200‑2000 r/min. High‑precision mechanical dial scale displays untwisting‑elongation up to 60 mm and twist‑shrinkage displacement up to 20 mm for direct visual reference during test cycles.
5. Integrated Data‑Processing with Hard‑Copy Report Output Large‑size LCD display shows real‑time twist value, elongation and batch‑statistical results. Compatible with dot‑matrix printer for exporting complete inspection records, simplifying lab‑document‑archiving for quality‑control projects.

Complete Technical Parameter Table

表格

Compliance Standards: GB/T 2543.1‑2001, GB/T 2543.2‑2001, FZ/T 10001‑92, ISO 2061, ASTM D1422

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Position instrument on stable horizontal lab bench, power‑on and finish system self‑diagnosis. Select target test‑method and set required gauge‑length on control panel. Pick matching hanging pre‑tension weight according to yarn thickness and material property. Prepare conditioned yarn specimens.
2. Specimen Mounting Secure one yarn‑end onto rotating drive‑clamp; route yarn along pulley‑balance assembly and fasten opposite end into stationary clamping jaw. Ensure yarn runs straight; hang selected tension‑weight onto balance‑swing arm to apply standard pre‑load.
3. Launch Twist‑Measurement Cycle Trigger test‑start command. Drive‑clamp rotates at preset velocity to execute untwisting / untwist‑retwist procedure. System automatically records twist‑count while mechanical scale tracks elongation and shrinkage displacement. Machine stops automatically once test logic completes.
4. Read‑Out & Data Recording Capture twist‑value from LCD panel; manually log elongation / shrinkage readings from mechanical dial. Run repeated parallel‑specimen tests and record batch‑average values. Generate printed test‑report via external printer when formal documentation is needed.
5. Post‑Test Tidying Release clamps and remove tested yarn residue. Reset machine parameters for next‑sample group. Switch‑off main‑power‑supply after finishing all‑test‑batches. Periodically inspect pulley‑swing flexibility and clamping‑jaw tightness.

Wide Industrial Application Scenarios

Spinning‑Mill Production Workshops

Routine twist‑parameter QC for cotton, wool, chemical‑fibre single‑yarn and plied‑yarn; monitor twist consistency to stabilise yarn‑strength and downstream weaving‑process performance.

Textile‑Material R&D Departments

Evaluate twist‑parameter influence on yarn physical‑properties; compare spinning‑process variant‑samples for new‑product development.

University Textile‑Engineering Laboratories

Specialised teaching‑experiment equipment for textile‑majors to study yarn‑twist mechanics.

Third‑Party Accredited‑Testing‑Organizations

Carry‑out multi‑standard‑compliant yarn‑twist assessment and issue formal inspection‑documents for textile‑product‑certification‑audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑806B electronic yarn‑twist‑tester main‑unit
2. Full‑set combinable pre‑tension hanging‑weight group
3. Yarn‑bobbin holder assembly
4. Power‑supply connecting‑cable
5. Multilingual printed‑operation‑manual complying with GB/T 2543.1‑2001, GB/T 2543.2‑2001, ISO 2061, ASTM D1422
6. Factory‑issued performance‑inspection‑certificate

Optional accessory: EPSON LQ‑300K dot‑matrix printer (sold separately).

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering test‑mode‑selection, pre‑tension‑weight matching and routine‑mechanical‑maintenance. Spare‑parts stock includes replacement weights, clamping‑jaw components and sensor‑parts. Bulk‑order customers can request custom‑voltage variants for overseas‑market deployment. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition product‑marketing‑image‑resources.

Product‑Banner‑Marketing‑Slogan

KR‑806B Micro‑Computer Yarn Twist Tester | Multi‑Method Digital Analyser For Single‑Plied‑Yarn Twist‑Elongation‑Shrinkage‑Testing

Core‑Feature‑Labels‑For‑Product‑Images

Six‑Selectable‑Test‑Algorithms | 10‑500 mm Adjustable‑Gauge‑Length | 1‑6000 Twist‑Per‑Unit‑Length | Balance‑Swing Pre‑Tension‑Weight‑System | 200‑2000 RPM Stepless‑Rotary‑Speed | Mechanical Elongation‑Shrinkage Scale | LCD‑Display & Printer‑Output | GB‑ISO‑ASTM‑Compliant

Safety‑Operation‑Reminder

Keep fingers away from rotating‑clamp zone during test‑running. Select proper pre‑tension‑weight to avoid yarn break‑induced flying fragments. Check pulley‑swing freedom regularly. Perform periodic‑system‑verification to guarantee measuring‑reliability.