Adhesive Needles for Industrial Sewing Machines SCHMETZ DPx5 DI - Leather (10 pcs.)

SCHMETZ DPx5 DI Needles for Industrial Sewing Machines are needles for leather with a DI (Diamond point) cutting tip. This tip type has a diamond-shaped cross-section, and the cut in the material is made at a 90° angle to the thread direction. As a result, the seam is very straight, slightly recessed, with a precise, firm stitch line without needle deviation even in hard, dry leather.

🧵 Suitable materials

• Hard, dry natural leather
• Hard artificial leather and composite materials
• Leather products with multiple layers
• Thick, stiff leather parts – soles, belts, inserts, etc.

✨ Where DI excels especially

• Very straight, recessed seams that do not stand out above the leather surface
• Normal and coarser decorative seams with a clear stitch pattern
• Seams in footwear, bags, suitcases where maximum precision is required
• Areas where it is important that the needle does not deviate or “lift” the material

🎯 DI (Diamond point) advantages

• 4 cutting edges – the needle penetrates heavy, hard leather more easily
• No needle deviation – the stitch follows a linear pattern, ideal for perfectly straight seams
• Clean, professional stitch appearance without material pulling
• Very straight seam – unlike LR/VR slanted decorative seams

🧶 Thread recommendations for leather

Choose thread size according to leather thickness and desired seam prominence:

• For coarser decorative seams (in bags, suitcases, footwear): polyester / polyamide tex 75–150 (No. 20–8) with needle NM 120–160
• For normal and medium-coarse seams: polyester tex 50–75 (No. 40–30) with needle NM 110–140

🔧 Compatibility

Suitable for industrial lockstitch (lockstitch) sewing machines designed for the 134/DPx5 needle system.

Needle system equivalents: 134 DI, 135X8 DIA, DPX8

📐 Technical data

• CANU: 20:05KJ1
• Tip type: DI – Diamond point (diamond-shaped, cut 90° to thread direction)
• Coating: Chrome
• Shank Ø: 2.0 mm
• Overall length: 38.5 mm
• Length to eye: 33.9 mm
• Shank flattening: no flattening
• Blade shape: straight
• Number of grooves: 1
• Stitch type: Lockstitch (straight stitch)
• Packaging: 10 needles
• Available sizes: NM 90–160

ℹ️ Note

The final appearance of the seam also depends on machine settings, thread type, and leather texture. If you want a visually “softer” or differently slanted decorative seam, also consider LR/VR or S type cutting tip needles.

✅ Why choose SCHMETZ DPx5 DI?

• Excellent straight, recessed seam for heavy leather
• Four cutting edge design ensures easy material penetration and stable stitching
• Reliable choice for manufacturing footwear, bags, suitcases, and other hard leather productsSCHMETZ quality
• – designed for intensive, professional industrial sewing – designed for intensive, professional industrial sewing