Precision Die-Cutting, Built for Electronics
Custom adhesive, foam, insulation, shielding and thermal die-cut parts — engineered per your drawing, sampled fast, shipped factory-direct from Shenzhen.
About ROTADIE
Company overview & key facts
ROTADIE is a precision die-cutting and converting factory based in Shenzhen, China. We slit, laminate and die-cut functional materials — double-sided tapes, PORON/EVA foams, insulating films, EMI shielding materials, protective films, dust-proof meshes and thermal interface materials — into custom gaskets, pads, seals and labels for consumer electronics, automotive electronics, medical devices and industrial equipment. Every part is produced to your drawing, verified by full inspection before shipment.
Why ROTADIE
Factory-direct · Custom per drawing · 100% inspected
Factory-Direct Supply
In-house slitting, laminating and die-cutting lines with full process control — stable quality, transparent pricing, no middleman markup.
Custom Per Drawing
Send us your DXF/PDF drawing or a physical sample. We engineer the material stack-up, die-tool it and produce exactly to spec.
Quality Verified
Incoming material checks, in-process control and 100% outgoing inspection with dimension reports on request.
Honest Sampling Terms
Typical parts are sampled in 3–5 working days after drawing confirmation. Lead time and tooling fee are quoted upfront per drawing — no surprises later.
Electronics Focus
Deep experience in consumer electronics, automotive electronics, wearables, acoustics and industrial devices.
Engineering Support
One engineer assigned to your project — material selection, tolerance advice and DFM feedback from quotation to mass production.
Products
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Double-Sided Adhesive Tape Die-Cuts
Custom die-cut double-sided adhesive gaskets and pads — 3M, Nitto, tesa and equivalent tapes converted to your exact drawing with tight tolerance, from prototype to mass production.
Die-Cut Foam Seals & Pads
Custom die-cut foam gaskets and cushions from PORON urethane, EVA, EPDM and silicone foam — dust sealing, water sealing, drop protection and compression set control.
Insulation Films & Barriers
Precision die-cut electrical insulation films and fire barriers — PI (Kapton-class), PET, aramid paper and composite barrier materials for batteries, PCBs and power modules.
EMI Shielding Gaskets & Foils
Die-cut EMI/EMC gaskets and shielding materials — electrically conductive foam, conductive fabric, copper/aluminum foil laminates — for enclosure sealing and board-level shielding.
Typical Converter vs ROTADIE
The materials on the market are similar — the way we work is not
How We Work
From inquiry to delivery — a 6-step standard process
Inquiry
Send your drawing (DXF/PDF), material spec and target quantity.
Quotation
Engineer-reviewed quote — material proposal, unit price and tooling cost within 24 hours.
Sampling
Typical parts sampled in 3–5 working days; lead time and tooling fee quoted per drawing.
Approval
You validate the sample; we lock the spec and tooling.
Mass Production
Die-cut production with in-process inspection and full traceability.
Delivery & Support
100% inspected shipment, export packing, ongoing engineering support.
Sampling lead time and tooling fee are quoted per drawing — typical parts 3–5 working days. Sample and courier costs are borne by the buyer, and all fees are confirmed before you commit.
A Converter You Can Build On
One factory for tapes, foams, films, meshes, shielding and thermal materials — one drawing, one quote, one accountable partner.
Knowledge Base
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How to Choose Double-Sided Tape for Electronics Assembly
A practical selection guide: surface energy, temperature range, thickness and die-cut format — how engineers should specify double-sided tape before requesting a die-cut quote.
Compression Set: Why Foam Seals Fail After Two Years
Compression set is the number-one silent killer of foam seals. What it is, how to read the datasheet, and which foam families keep their seal force long-term.
EMI Shielding Gasket Design: Seam Gaps, Compression and Contact Resistance
A board-level and enclosure-level design guide for EMI gaskets: how seam geometry, compression force and contact resistance determine whether your EMC test passes.
Frequently Asked Questions
View all →What information do you need to quote my die-cut part?
Three things: (1) a drawing — DXF, PDF or STEP, even a dimensioned sketch works; (2) the material re
How fast can I get samples?
Sampling lead time depends on part complexity and is quoted together with your quotation. Typical pa
What is your minimum order quantity?
For prototype and validation runs we accept single-run quantities — you do not need to commit to mas
Ready to Start Your Project?
Send your drawing for a quote — engineer-reviewed material proposal, unit price and tooling cost within 24 hours.
