SUMTHIN®

Frequently Asked Questions

Everything you need to know about ordering clipper blades, OEM manufacturing, and working with SUMTHIN.

What is your MOQ for clipper blades?+
For existing mold products, MOQ is typically 1,000-2,000 pieces per SKU. For custom-tooled blades, MOQ is negotiable and depends on the complexity of the tooling.
What is the lead time for production?+
For orders using existing molds, lead time is 15-20 days after order confirmation. For new tooling projects, add 15-20 days for mold fabrication and sample approval.
What materials do you use for clipper blades?+
We work with three main material platforms: 440C stainless steel (hardness HRC 58-62), zirconia ceramic (stays cool, 5× edge life), and MIM powder metallurgy (complex geometries, high consistency). Surface treatments include DLC nano coating, PVD plating, and electroplating.
What is MIM (Metal Injection Molding)?+
MIM is an advanced manufacturing process similar to plastic injection molding but using metal powder mixed with a binder. After injection, the part undergoes debinding and sintering at 1,000°C+. MIM allows complex shapes impossible with traditional machining, with ~20 process steps versus 30-42 for conventional manufacturing.
Can you make blades compatible with Wahl / Andis / Oster clippers?+
Yes. We manufacture blades compatible with all major clipper brands including Wahl®, Andis®, Oster®, Wmark, VGR, KEMEI, Codos, Lister Star®, and Heiniger®. These are manufactured to the same dimensional specifications as the originals.
Do you offer private label / OEM packaging?+
Yes. We offer complete private label services: laser engraving of your logo on blades, custom packaging (blister packs, card backs, display boxes), and retail-ready fulfillment. We already serve Amazon sellers, distributors, and grooming salon chains.
What certifications do you have?+
We hold ISO 9001 (Quality Management), ISO 14001 (Environmental Management), SGS certification, and National High-Tech Enterprise designation from China's Ministry of Science & Technology. We also hold 20+ utility patents for blade design and MIM processes.
Can I visit your factory?+
Absolutely. We welcome factory visits and quality audits. Our 45-acre manufacturing campus is located in Haining, Zhejiang — about 1.5 hours from Shanghai Pudong Airport (PVG) or Hangzhou Xiaoshan Airport (HGH). We'll arrange pickup and a full tour.
What is your DLC nano coating?+
DLC (Diamond-Like Carbon) is a nano-scale graphene coating applied in-house using our ZZFS-1300 coating equipment. Unlike decorative PVD, DLC is a functional coating that reduces friction, increases hardness, and extends blade life. Available in 5 colors: black, gold, green, yellow, and pink.
What shipping terms do you offer?+
We typically ship FOB Ningbo — one of China's largest ports, about 100 km from our factory. We can also arrange CIF or door-to-door delivery through our logistics partners.

Still Have Questions?

Our team is happy to help. Reach out and we'll respond within 12 hours.

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