SCHMETZ DPx17 LR also known as 135X17 LR, SY 3355 LR, 135X16 R TW, DPX16 LR are industrial sewing machine needles for leather with LR (Reverse Twist) cutting point. The needle’s cut is at ~45 to the thread direction, so the stitch on leather looks decoratively slanted (slight left slant) with a clean, distinct cut. Chrome coating reduces friction and heat, providing long life in intensive production.

Suitable materials

• All types of genuine and synthetic leather
• Leather combined with textile (bags, linings, belts)
• Thicker coated materials (e.g., car upholstery, bag components)

Where LR excels

• Decorative/topstitch seams on leather with a sleek, even slant
• Footwear and apparel industry, leather upholstery
• Sewing bags, suitcases, car seats

LR (Reverse Twist) advantages

• Clearly cut stitch without leather tearing
• Aesthetically slanted seam ideal for decoration and visible topstitching
• Stable stitch even with heavier threads

Thread recommendations for leather

Choose needle and thread size based on leather thickness and desired effect (the thicker the material, the larger the NM and the thread tex):

• For decorative/topstitching: polyester or polyamide approx. tex 75150 (No. 208) with a needle NM 100160
• For medium-thickness leather: polyester approx. tex 5075 (No. 4030) with a needle NM 110160

Compatibility

Suitable for industrial lockstitch machines designed for DPX17, 135X17, SY 3355, 135X16 R TW, DPX16 LR series needles.

Needle system equivalents: DPX17 LR, 135X17 LR, SY 3355 LR, 135X16 R TW, DPX16 LR

Technical data

• CANU: 37:20AX1
• Point type: LR Reverse twist point (cutting point 45)
• Coating: Chrome
• Shank : 2.0 mm
• Overall length: 43.3 mm
• Length to eye: 38.9 mm
• Shank flattening: none (no flattening)
• Blade shape: straight
• Number of grooves: 1
• Stitch type: Lockstitch
• Packaging: 10 needles

Note

The stitch appearance in images refers to machines with side-thread insertion; the visual slant effect on front-thread insertion machines may differ. If a different stitch slant is required, choose an appropriate cutting point (e.g., LL for very straight seams).

Why these needles?

• Optimal for visible decorative seams on leather
• Wear-resistant, designed for long, stable production
• Compatible with the industry’s most popular lockstitch machines