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Precision Fabric Sample Knitting for Yarn Uniformity & Dyeing Affinity Assessment
A professional laboratory circular knitting machine engineered for textile dyeing and quality control laboratories
The AT250F Series Lab Knitting Machine is specially designed to knit fabric samples of POY, DTY, or FDY yarns for the assessment of yarn uniformity and dyeing affinity. It is applicable to various filaments ranging from 25 to 1000 dtex, making it an ideal equipment for dyeing test in knitting factories and textile research laboratories.
Available in two models — the AT250F-I (fixed-speed with LED display) and the AT250F-II (high-speed with adjustable running speed up to 300 rpm and filament storage device) — the AT250F series provides flexible solutions to meet different laboratory requirements. The standard needle cylinder comes with 240 needles, with optional cylinders ranging from 144 to 300 needles to accommodate various filament fineness levels.
Widely used in synthetic fiber manufacturers, dyeing and finishing factories, textile research institutes, and quality inspection centers, the AT250F delivers consistent, reliable fabric samples essential for accurate dyeing evaluation and yarn quality assessment.
Versatile fabric sample preparation across the textile industry supply chain
POY, DTY, and FDY yarn sample evaluation for production quality control
Knit fabric samples for dyeing affinity testing and color fastness evaluation
New yarn development and filament uniformity research applications
Standardized fabric sample preparation for third-party textile testing
Engineered for precision, reliability, and operational flexibility
AT250F-II is equipped with a dedicated filament storage device ensuring smooth yarn feed and consistent sample quality during high-speed knitting.
Supports POY, DTY, and FDY filaments from 25 to 1000 dtex, covering the full range of common synthetic yarn specifications.
Standard 240-needle cylinder included; optional cylinders with 144 to 300 needles available to match specific filament fineness requirements.
AT250F-II offers adjustable speed from 10 to 300 rpm, allowing operators to optimize knitting parameters for different yarn types.
Built-in automatic tension control ensures uniform fabric density and consistent sample quality across different knitting sessions.
Clear LED display for real-time monitoring. Robust construction guarantees stable and reliable performance in demanding lab environments.
Choose the right needle cylinder based on your filament fineness
| Filament Fineness (dtex) | Recommended Needles |
|---|---|
| 25 ~ 40 | 300 N |
| 35 ~ 65 | 280 N |
| 50 ~ 100 | 260 N |
| 75 ~ 150 | 240 N (Standard) |
| 150 ~ 350 | 176 N |
| > 300 | 144 N |
Two models to meet different laboratory requirements
Low-speed & LED Display
High-speed & LED Display
Complete technical parameters for both models
| Parameter | AT250F-I | AT250F-II |
|---|---|---|
| Needle Cylinder Diameter | ⌀89 mm (3.5 inch) | ⌀89 mm (3.5 inch) |
| Number of Feeders | 1 | 1 |
| Number of Needles | 144 ~ 300 N | 144 ~ 300 N |
| Running Speed | 180 r/min | 10 ~ 300 r/min (adjustable) |
| Display Mode | LED display | LED display |
| Applicable Filament | POY (customized), DTY, FDY | POY (customized), DTY, FDY |
| Applicable Filament Fineness | 25 ~ 1000 dtex | 25 ~ 1000 dtex |
| Power Supply | AC380V 50Hz 350W, three-phase | AC220V 50Hz 350W, single-phase |
| Dimensions (L x W x H) | 720 x 360 x 1450 mm | 720 x 490 x 1450 mm |
| Weight | 85 kg | 100 kg |
What's included and what can be upgraded
| Main machine | 1 set |
| Needle cylinder with 240 needles (on main machine) | 1 pc |
| Packing list | 1 pc |
| Quality certificate | 1 pc |
| User manual | 1 pc |
| Needle cylinders (different needle counts) | Optional |
| Knitting needles | Optional |
| Sinker | Optional |
Contact us today for detailed quotation, technical consultation, or to request a customized needle cylinder configuration for your specific filament requirements.
Email: sales@anytester.com | Tel: +86 551 66191120 | www.anytester.com
Anytester (Hefei) Co., Ltd. | No.128, Danxia Road, Shushan District, Hefei City 230601, Anhui, China
© 2025 Anytester (Hefei) Co., Ltd. All Rights Reserved. | www.anytester.com
Manufacturer of textile testing equipment, lab knitting machines, and dyeing testing instruments.