OEM Zipper Pin Box Accessories for Bags Exporter

Product Overview

The zipper pin box accessory is a small metal component that engages with the slider teeth of a coil zipper to provide reliable closure and opening force. It is typically installed in the pin box of luggage, backpacks, and sports bags where repeated cycling and exposure to moisture occur. The design focuses on maintaining dimensional stability under tensile loads while minimizing friction to extend zipper life.

Technical Specifications

Parameter	Typical Value	Customizable Range
Pin diameter (mm)	2.0 – 2.5	1.5 – 3.0 (upon request)
Length (mm)	5.0 – 7.0	3.0 – 10.0
Head diameter (mm)	3.5 – 4.0	2.5 – 5.0
Material	Brass, Stainless steel 304, Zinc alloy	Other alloys available
Surface finish	Nickel plating, Tin plating, Passivation	Custom coatings (black oxide, etc.)
Tensile strength (N)	≥ 150 (brass), ≥ 300 (SS 304)	Per material spec
Cycle life (cycles)	≥ 5000 (standard)	Up to 20000 with lubricated finish
Salt spray resistance (hours)	≥ 96 (nickel plated brass)	Up to 500 with higher grade plating

Material Options

Material selection influences corrosion resistance, weight, and cost. Common options include brass (CU‑Zn alloy) offering good machinability and anti‑corrosion properties after nickel plating; stainless steel 304 providing higher tensile strength and excellent resistance to salt spray; zinc alloy enabling lower cost with adequate strength when coated. Each material can be supplied with specific plating thickness to meet ASTM B488 or ISO 2081 standards.

Applications in Bag Manufacturing

In luggage manufacturing, the zipper pin box must withstand repeated opening/closing cycles under dynamic loads while resisting corrosion from sweat and rain. In backpacks used for outdoor activities, the accessory needs to maintain function after exposure to UV and temperature variations. In sports bags, impact resistance is important due to occasional dropping. The accessory’s geometry ensures proper alignment with the zipper coil, reducing mis‑engagement and slider jamming.

Customization Capabilities

• Pin length adjusted to match box depth (3.0 mm – 10.0 mm)
• Head shape options: flat, domed, knurled to influence insertion force
• Coating types: nickel, tin, black oxide, or custom passivation
• Laser‑etched logos or part numbers
• Tolerance grades down to ±0.01 mm
• Pre‑lubricated finishes for reduced friction coefficient

Quality Assurance & Testing

• Incoming material verification by spectrometry (composition ±0.5 %)
• Dimensional inspection on CMM with repeatability 2 µm
• Tensile pull‑off test to confirm strength per material spec
• Zipper fatigue cycling (≥5000 cycles) on standardized rig
• Salt‑spray exposure per ASTM B117 (minimum 96 h)
• Final visual check for burrs, plating uniformity, correct orientation

Packaging & Export Logistics

• Anti‑static trays with desiccant packets
• Moisture‑barrier film‑lined corrugated cartons
• Palletized, stretch‑wrapped, and ISPM‑15 fumigated when required
• Each pallet includes packing list, MSDS, and test report copy
• Standard lead time 2–4 weeks; custom finishes 6–8 weeks

Frequently Asked Questions

Question	Answer
Can dimensions be customized?	Yes, pin length, head diameter, and tolerance can be adjusted per customer drawing or 3D model.
What information is required before quotation?	A detailed 2D drawing or 3D model, material preference, coating type, order quantity, and any required certifications (e.g., RoHS, REACH).
What materials are available?	Brass, stainless steel 304, zinc alloy, with optional plating finishes.
How is quality inspected?	Incoming material verification, CMM dimensional inspection, tensile and cycle testing, salt‑spray exposure, and final visual inspection.
What packaging methods are available?	Anti‑static trays, moisture‑barrier cartons, palletized with fumigation options; custom packaging upon request.
How are export shipments protected?	Desiccant, moisture‑barrier film, ISPM‑15 pallets, and optional corrosion‑inhibitor coating for extra protection.
What is the typical production lead time?	2–4 weeks for standard configurations; longer for special coatings or tight tolerances.
How are samples arranged?	Samples can be shipped via express freight (collect or prepaid); sample costs are credited against the first order.

Contact for Inquiry

To discuss your specific zipper pin box requirements, please provide a drawing or part number, target annual volume, and any performance criteria. Our engineering team will review the submission and return a detailed quotation with lead time and tooling notes. You can reach us via the contact form at Request a quotation or email [email protected].