Industrial Sewing Machine Needles-SCHMETZ-DPx17-135x17-LR for Leather-10 pcs.

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 75–150 (No. 20–8) with a needle NM 100–160
• For medium-thickness leather: polyester approx. tex 50–75 (No. 40–30) with a needle NM 110–160

🔧 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 Ø: 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

ℹ️ 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