100% Customization per Drawing

Date & Recycle Mark Inserts & Gas Vents

Stainless steel date mark inserts, SPI 1–7 recycle mark pins and round / slit / porous gas vent inserts for injection molds — PL-side, plate-side and double-ring exchange types, 0.15–0.25 mm engraving depth, H7/g6 pocket fit, heat-resistant grades to 250 °C+, MOQ 1, 3–7 day lead time.

SUS420J2 / SUS440C stainless date inserts — concave & convex characters
PL-side, plate-side, double-ring and adjustable-length exchange types
All 7 SPI resin codes, ISO 11469 compliant recycle mark pins
Round, slit and porous gas vent inserts with 0.01–0.03 mm channels
H7/g6 pocket fit — flash-free seating, front-replaceable without mold teardown
MOQ 1 piece — standard 3–7 days, urgent 24–72 h

Download CAD / Specs

Fast Response within 2 HoursSupport STEP, IGES, DWG, PDF Files

Technical Specifications

Date Mark, Recycle Mark & Gas Vent Inserts — Technical Parameters & Material Specs

Standard Materials

SUS420J2 / SUS440C / H13

Corrosion-resistant stainless & hot-work steel grades

Insert Diameter

Ø 3 – Ø 20 mm+

Standard & custom sizes per pocket drawing

Mark / Vent Depth

0.15–0.25 mm · 0.01–0.03 mm

Legible engraving, flash-free vent channels

Temperature Rating

200 °C std · 250 °C+ HT

HRC 50+ maintained above 200 °C in heat-resistant grades

Parameter	Technical Details / Standard Values
Date Insert Configurations	PL-side exchange, plate-side exchange, double-ring (year + month), L-adjustable length, heat-resistant with removable tap
Character Style & Depth	Concave (recessed) & convex (raised) characters; standard engraving depth 0.15–0.25 mm
Pocket Fit Tolerance	H7/g6 or H7/h6 — flash-free seating with easy maintenance removal
Date Display Options	Month + year combo, year-only, shift codes (A/B/C or 1/2/3), blank / custom engraving
Recycle Mark Options	All 7 SPI resin identification codes (♳–♹), ISO 11469 compliant, engraved (raised) or standard (recessed)
Gas Vent Insert Types	Round (passive), slit (high-flow, wire-EDM), porous sintered (micro-venting), vacuum-assist units for deep cavities
Vent Channel Depth	0.01–0.03 mm precision-ground channels, calibrated to resin viscosity — shallower for PA/POM, deeper for PC/PMMA
Standards & Traceability	HASCO / DME / MISUMI compatible pockets; IATF 16949 & ISO 9001 manufacturing, ISO 13485-compatible lot marking
Applicable Mold Types	Injection molds, packaging & closure molds, automotive connector and housing molds, medical device molds

Need a non-standard size or special alloy core pin? We specialize in 100% custom machining according to your 2D/3D CAD drawings.

CUSTOM MACHINING CAPABILITIES

Tailored Date Mark, Recycle Mark & Gas Vent Insert Machining & Special Processing Limits

📏 Dimensional Limits

Micro & Complex Dimensions

Outer Diameter (OD): Min Ø 0.2 mm to Max Ø 50.0 mm
Pin Length: Up to 600 mm (ultra-long date & recycle mark inserts and gas vents supported)
Special Shapes: Stepped, tapered, flat D-cut, square head & eccentric pin tip

⚙️ Special Processes

Cooling & Deep Hole EDM

Cooling Channels: Internal water cooling holes & spiral baffle channels
Air Venting: Porous / vented date & recycle mark inserts and gas vents structures for gas release
Micro-EDM: Complex cavity contours, thread inserts and micro-grooves

🛡️ Surface Treatments

Advanced PVD Coatings

TiN / TiAlN: High-heat resistance for die casting molds
DLC (Diamond-Like Carbon): Ultra-low friction for dry / cleanroom molding
Nitriding Treatment: HV 900–1100 surface hardness for extended mold life

Support 100% Customization According to Your Drawings

Send us your CAD files for a free DFM (Design for Manufacturability) analysis and instant quotation.

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QUALITY ASSURANCE & INSPECTION

Rigorous Precision Inspection & Quality Control Standards

🔬 Inspection Hardware

High-Precision Testing Equipment

ZEISS CMM for complex 3D contours
Nikon optical projector & tool presetters (0.001 mm resolution)
Vickers hardness testers & surface roughness gauge

🎯 Quality Standards

Zero-Defect Quality Assurance

100% critical dimension inspection before packaging & shipment
Concentricity & runout verification under optical magnifiers
Surface micro-scratch & polish quality double-check

📜 Material Compliance

Full Material & Heat Treatment Traceability

Spectrometer material composition analysis report provided
Original Mill Test Certificate (MTC) & heat treatment logs
RoHS & REACH environmental compliance statements

Download Sample Quality Control & Inspection Reports

Review our standard CMM inspection sheet, Material Composition Certificate, and RoHS report templates.

MANUFACTURING PROCESS & LEAD TIME

Precision Machining Workflow & Reliable Delivery Timelines

Turning / Soft CNC

Precision rough turning & blank shaping

Heat Treatment

Vacuum quenching (HRC 48–62)

Rough Grinding

Centerless & OD precision grinding

Finish Grinding / EDM

Jig grinding & micro-EDM features

Surface Coating

PVD (TiN/DLC) or polishing (Ra 0.1)

100% CMM QC

Dimension check & safe packaging

📦 Standard Delivery

3–5 Working Days

For standard dimensions, off-the-shelf standard blanks, and standard SKD61/H13 materials.

🛠️ Custom Manufacturing

7–10 Working Days

For tailored CAD drawings, complex cooling channels, special coatings, or tight ±0.002 mm tolerances.

⚡ Fast-Track Option

24–72 Hours Express

Emergency mold repair green channel available for urgent downtime orders (upon CAD review).

APPLICATION & INDUSTRY SOLUTIONS

Date Marking & Gas Venting Inserts for Demanding Mold Applications

🚗 Automotive

Automotive Connector & Housing Molds

IATF 16949 date-code traceability on every shot — PL-side exchange inserts rotate from the parting line without mold teardown during shift changes.

🩺 Medical

Medical Device & Syringe Molds

ISO 13485 lot tracing with heat-resistant inserts that hold HRC 50+ above 200 °C — sharp marking for 500K+ shots in PPS, PEEK and LCP.

📦 Packaging

Thin-Wall Packaging & Closure Molds

SPI resin codes 1–7 for market compliance, plus blow-type vacuum units that vent deep cavities on high-speed, sub-8-second cycles.

🔌 Electronics

Consumer Electronics & Appliance Molds

Double-ring inserts stamp year + month in one pocket — half the mold modifications, changeover cut from 5 minutes to under 1.

Key Mold Performance Challenges We Resolve:

Heat Fatigue & Thermal Cracking

Vacuum-quenched H13/SKD61 steel prevents thermal erosion in aluminum & zinc die casting.

High Wear & Galling Resistance

Advanced PVD coatings (TiAlN / DLC) extend pin service life by 3x–5x in abrasive glass-filled resins.

Mold Pin Bending & Flash Issues

Strict coaxiality (≤0.003 mm) and rigid alloy cores eliminate flash and core deflection during high-pressure injection.

MANUFACTURING CAPABILITY & DETAIL GALLERY

Precision Craftsmanship & Advanced Factory Hardware

Mirror Finish & Micro Polish

Ra 0.1 µm surface roughness, zero micro-burr or tool marks on pin tip.

Precision Chamfering & R-Angle

Smooth transition radii and precise lead-in chamfers per CAD specs.

PVD Coating & Nitriding Layers

Uniform TiAlN / DLC coating film thickness with high surface adhesion.

Complex Head & Tip Geometries

Precision stepped, D-cut flat, and eccentrically shaped pin profiles.

High-End Machining & Tooling Hardware:

⚡ Wire EDM

Seibu & Sodick Slow-Feed Wire Cut

Corner radius accuracy down to R0.02 mm
Surface roughness Ra 0.2 µm after wire cutting
Suitable for micro-slots, keyways, and complex pin contours

⚙️ Precision Grinding

Mitsui & WASINO Precision Grinders

Centerless & jig grinding for tight OD/length limits
Diameter tolerance controlled within ±0.001–±0.002 mm
Coaxiality & roundness ≤ 0.002 mm guaranteed

🛠️ CNC & EDM

Mikron High-Speed CNC & Sodick EDM

CNC high-speed turning & milling for blank preparation
Micro-cavity EDM for cooling channels and venting slots
Automated tool changers for high-volume consistency

ORDERING PROCESS & FREQUENTLY ASKED QUESTIONS

How to Order Custom Date & Recycle Mark Inserts & Gas Vents

📁 Step 1

Submit CAD & Specs

Send 2D/3D drawings (STEP, DWG, PDF) with quantity, material, and tolerance requirements.

⏱️ Step 2

24H DFM & Quotation

Our engineering team conducts DFM analysis and provides a competitive quote within 24 hours.

⚙️ Step 3

Precision Manufacturing

CNC turning, vacuum heat treatment, jig grinding, and surface coating per your specifications.

✈️ Step 4

100% QC & Express Shipping

100% CMM dimensional verification, anti-rust packaging, and global air express delivery.

What is your Minimum Order Quantity (MOQ) for custom date & recycle mark inserts and gas vents?

We support 1-piece prototyping! Whether you need a single replacement date & recycle mark inserts and gas vents or bulk batch production of 10,000+ pieces, we accommodate all order volumes.

How do you guarantee material authenticity and heat treatment quality?

Every batch comes with original Mill Test Certificates (MTC) and spectral material analysis reports. Vacuum heat treatment logs (HRC hardness testing) are provided upon request.

What packaging and anti-rust protection do you apply for international shipping?

All finished date & recycle mark inserts and gas vents undergo ultrasonic cleaning, immersion in heavy-duty anti-rust oil, individual vacuum plastic sealing, and padded shockproof box packaging.

Can you machine non-standard custom shapes or internal cooling channels?

Yes! We specialize in complex date & recycle mark inserts and gas vents including stepped profiles, D-cuts, square heads, micro-EDM cavities, and internal/spiral water cooling channels per CAD specs.

Ready to Upgrade Your Mold Component Precision?

Send us your drawing today to receive a free DFM review and detailed quotation within 24 hours.

🔒 100% Confidential | NDA Protected | Instant DFM Assessment

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