HAIRUN-2 · Sock knitting

Published specifications

Values below come from the maintained catalogue record. The guide review date does not renew an earlier specification: read the dated source notes and confirm a current, matched configuration before comparing products.

Swipe the table sideways to see every column.

Hairun builds the HAIRUN-2 around a sequence that most sock plants split across several machines and workers. Plan the demonstration along the same sequence, with your own yarn on the cylinder and needle setup you intend to buy. [1]

1. Knitting

   The sock is knitted to your size, structure and program. Check that the plain, terry or other construction you need belongs to the offered version.

2. Transfer and toe linking

   The sock moves once into linking, where the toe is joined stitch to stitch. Examine seam alignment, closure and the properties your product needs.

3. Turning and discharge

   The machine turns the sock and releases it. Watch several sizes, and see what happens to a piece that is incomplete or rejected.

4. Inspection

   Get a list of the conditions the delivered machine detects or stops for. Anything outside that list stays with your quality staff.

• Get a single HAIRUN-2 sheet first, then compare the configurations of other sock knitting machines against it.

The technical sheet in the gallery follows the HAIRUN-2 cover, yet it mixes in other model names and some entries disagree with each other. The table sets out each issue and the figure to request for your machine. [1] [2]

Swipe the table sideways to see every column.

The toe seam is the main reason to buy an integrated machine, so set its pass marks before the visit. Pick reference socks and agree checks for alignment, closure, appearance and any functional test your customers ask for. Hairun compares its linking with hand linking; seam checks on your own yarn carry more weight.

Ask Hairun to stage an interruption in linking, transfer, yarn feed or turning, following the operating manual. Note the operator's steps, what becomes of the affected sock and how long the machine takes to return to good socks.

The brochure mentions a needle correction mechanism and a trimming arrangement. Ask how each one works, what it cannot handle and what maintenance it needs. Keep routine needle inspection and replacement in your plan either way. [1]

Write the run below into the purchase contract so the factory trial and the check at your plant follow the same rules. [1] [2]

1. Set the matrix

   List the yarns, sizes, constructions and patterns to run, with the model, revision, cylinder, needle count, program and settings for each.

2. Approve one finished sock

   Run the full cycle and judge toe, dimensions and appearance against the reference. Label and keep the approved samples.

3. Count accepted output

   Over a fixed period, count good socks or pairs and say which unit you use. Log rejects, part-finished cycles, stops and operator work.

4. Change over once

   Move to another agreed yarn, design or size. Record hardware and software changes and the time back to approved quality.

5. Repeat on delivery

   At commissioning, run the same matrix on the delivered machine with the samples and recovery procedures attached, and agree how deviations are settled.

Hairun's process sheets compare transfer time and electricity use with other methods and describe turning shared across a group of machines. Use those figures as a starting point. If you want seconds per pair or an energy figure in the contract, define the measurement on your machine and pattern.

Ask for electrical loads, compressed-air demand, any shared auxiliary units, a full installation and access drawing, and the boundary for any energy result Hairun promises. Tie any output or energy guarantee to one material, pattern, quality standard and set of run conditions.

List the labour and machines your product still needs after the cycle, such as boarding or other finishing, final quality checks, pairing and packing. The quotation should name tools, wear parts, maintenance, program preparation, training, warranty and service response. [1] [2]