3618 Double Needle Clamp 1/8″ for Twin Needle Machines

The 3618 Double Needle Clamp Assembly 1/8″ (3.2mm) is made for twin-needle industrial lockstitch machines that require precise parallel needle spacing for two-row stitching.

Key Features

• Precision 1/8″ Gauge Spacing: Maintains approximately 3.2mm spacing between the two needle positions for consistent twin-row stitching.
• Hardened Tool-Steel Construction: Designed to withstand repeated clamping, vibration, and high-speed sewing cycles.
• Smooth Finished Surface: Burr-free contours help reduce thread contact issues around the needle-clamp assembly.
• Direct Replacement Design: Suitable for replacing a worn or damaged double-needle clamp with the same 1/8″ gauge specification.
• Industrial Production Use: Built for garment factories, tailoring workshops, and other professional sewing environments.
• Pack of 1: Supplied as one double-needle clamp assembly.

Use Cases

It is suitable for:

• Shirt manufacturing
• Jeans and denim stitching
• Uniform production
• Sportswear
• Outerwear
• Parallel seam topstitching
• Decorative double-row stitching
• Light to heavy woven fabrics

Benefits

Consistent Parallel Stitching

The 1/8″ gauge keeps the two needle positions evenly spaced, helping produce uniform parallel stitch lines across repeated garment production.

Durable Construction

Hardened tool-steel construction provides resistance to mechanical wear and repeated clamping forces encountered in production sewing.

Cleaner Thread Path

Smoothly finished surfaces reduce sharp edges and burrs around the clamp that could interfere with thread movement.

Machine Compatibility

This 1/8″ / 3.2mm double needle clamp assembly is specified for compatible twin-needle industrial lockstitch machines, including:

Part numbers: 3618 / 3168
Gauge: 1/8″ / approximately 3.2mm

Specifications

How To Use

First, switch off and unplug the sewing machine before servicing the needle bar or needle-clamp assembly.

Next, remove the existing double-needle clamp according to the machine’s service procedure and inspect the needle bar, screws, and mounting area for damage or excessive wear.

Then, install the 3618 / 3168 1/8″ clamp assembly securely on the needle bar and insert the two compatible needles into their respective needle positions.

Finally, tighten the needle-clamp screws evenly, manually rotate the machine to confirm that both needles clear the needle plate and presser-foot components, and perform a slow-speed test before returning to production.

FAQs

What does a 1/8″ double needle clamp mean?

This spacing determines the distance between the two parallel stitch rows produced by the twin-needle machine.

Is 3618 the same as 3168?

The supplied product specification identifies 3618 / 3168 as the applicable part-number references for this 1/8″ gauge clamp.

What is the distance between the needles?

The specified gauge is 1/8 inch, approximately 3.2mm. This is the nominal distance between the two needle positions and determines the spacing between the resulting stitch rows.

Can this clamp be used for denim?

Yes. The 1/8″ double needle clamp is suitable for compatible twin-needle industrial machines sewing denim and other heavier woven fabrics.

Why do both needles need to be clamped securely?

Both needles must remain correctly positioned throughout the sewing cycle. Loose clamping can allow a needle to shift, twist, or move vertically, which can affect stitch alignment and may cause the needle to contact surrounding machine components.

Can I use this clamp on a single-needle machine?

No. This is a double-needle clamp assembly intended for compatible twin-needle industrial lockstitch machines.