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Lock, Hinge & Sealing Solutions for Cold Chain & Transport Equipment

Lock, Hinge & Sealing Solutions for Cold Chain & Transport Equipment

Full hardware stack for refrigerated trucks, reefer trailers, ISO reefer containers, and walk-in cold rooms — SUS304/316 truck-body T-handles, 3-point cam-bar rod locks, anti-pilferage recessed cylinders, food-grade EPDM gaskets, and –40 °C low-temperature stainless butt hinges. Engineered for ATP, FSMA STF, HACCP, ISO 1496-2 / 17712, GDP and IP65/66 cold-chain compliance.

Cold-chain hardware is not the same across asset classes. A 7.5-ton city distribution reefer cycles its rear door 30+ times a day and lives or dies by the door gasket and paddle latch. A long-haul reefer trailer needs a 3-point rod cam-bar that holds IP65 sealing and clears FSMA STF + ATP audits. An ISO reefer container demands SUS304/316 and ISO 17712 anti-tamper seals after 720 h of salt spray. A walk-in cold room mandates an internal release latch, food-grade EPDM, and –30 °C-rated stainless butt hinges. Yuxin Electric supplies the full hardware stack — whale-tail T-handles, 3-point rod locks, SUS304 hinges, food-grade gaskets — across all four cold-chain form factors, and engineers the niche items (–40 °C hinges, GDP audit-trail smart locks, drip-channel butt hinges) on demand.

Hardware Across 4 Cold-Chain Form Factors

ROOF CHILLERLIGHT REEFER · 1–7.5 t
FORM A

Refrigerated Light Truck Body

1–7.5 t · 6–18 m³ · urban distribution

Last-mile cold delivery — single rear roll-up or swing door, 1–2 side service doors, roof-mount chiller. Zinc + SUS304 hardware mix; cycle-life and food-grade gasketing dominate.

See hardware kit →
NOSE UNITREEFER SEMI · 13–17 m
FORM B

Refrigerated Semi-Trailer

13–17 m · 50–80 m³ · over-the-road

Long-haul reefer — dual rear swing doors with 3-point rod cam-bar, side access door, nose-mount Carrier/Thermo King unit. Anti-theft, FSMA STF, and ATP-aligned hardware.

See hardware kit →
END-MOUNT REEFER20 / 40 ft REEFER · ISO 1496-2
FORM C

Reefer ISO Container

20 ft / 40 ft / 40 ft HC · 28–67 m³

Intermodal sea + rail + road — ISO 1496-2 corner casting frame, end-mount reefer module, ISO 17712 anti-tamper seal locks. Salt-spray ≥720 h SUS304/SUS316 mandatory.

See hardware kit →
WALK-IN · –30 °CDOORPU SANDWICH PANEL
FORM D

Walk-In Cold Room

Modular PU panel · –30°C to +5°C

Fixed cold storage — sandwich-panel hinged or sliding door, drip-channel hinges, internal release latch (NFPA 101 life-safety), service hatches. Food-grade SUS304 throughout.

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Hardware Demand Matrix

Quantity per representative unit, indicative — actual specs vary by body builder, temperature class (chilled vs. frozen), and target market regulation.

Hardware CategoryA · Light TruckB · Reefer TrailerC · ISO ContainerD · Walk-In
3-point rod cam-bar (rear cargo door)122
Whale-tail / paddle T-handles4–64–61–21–2
Heavy-duty rear-door hinges466–84–8
Concealed adjustable SUS304 hinges24–8
SUS304 anti-tamper recessed cylinders22–441–2
IP65/66 compression latches4–66–842–4
Quarter-turn cam locks (service ports)2–42–422–4
Food-grade EPDM door gasket (m)~6~10~12~30
Door retainer / hold-back hooks2224–8
Refrigeration unit access hinges4444
Vandal-resistant T-handles (IP65+)1221
ISO 17712 high-security seal lockcustomoptional1
Internal release latch (cold-room safety)custom1 / door
–40 °C low-temperature hinge variantcustomfreezer rooms

Hardware Kit by Form Factor

Custom Engineering for Cold Chain

Beyond the catalog, Yuxin engineers and supplies the niche hardware that reefer body builders, container OEMs, and walk-in cold room integrators ask for — from –40 °C low-temperature hinges to ISO 17712 high-security seal locks and pharma GDP audit-trail smart locks. Send specs, get a quote.

Food-Grade EPDM Gaskets (FDA / EU 1935/2004)niche
Applies to: A / B / C / D
–40 °C Low-Temperature SUS304 Hinge Variantniche
Applies to: C / D
ISO 17712 High-Security Container Seal Locksniche
Applies to: C
Internal Release Latch (Cold-Room Trapped-Person Safety)
Applies to: D
GDP Audit-Trail Smart Locks (Pharma Cold Chain)niche
Applies to: A / B / C
Master-Key Fleet System (Rental / 3PL Reefer Fleet)
Applies to: A / B
Drip-Channel Stainless Butt Hinge (Defrost Run-off)niche
Applies to: D
Sliding Door Track + Cassette Wheels (Walk-in)
Applies to: D
Anti-Pilferage Rear-Door Hasp & Padlock Loop (SUS304)
Applies to: A / B / C
Heavy-Duty SUS304 Casters (Mobile Cold Trolley)
Applies to: D
Request Custom Engineering Quote

Compliance & Spec Standards

ATP (UN ECE)
Agreement on the International Carriage of Perishable Foodstuffs — drives reefer body insulation + door-seal class (IR / FRC / FRA)
FSMA STF (US)
Sanitary Transportation of Human and Animal Food — drives food-grade gasket + cleanable hardware specs for trucks and trailers
HACCP / ISO 22000
Food safety hazard analysis — anti-tamper cylinders, sealable handles, no-crevice handle profiles
ISO 1496-2
ISO container reefer mechanical specs — cam-bar, hinge-leaf carrier, corner-casting clearance
ISO 17712
High-security mechanical seals for intermodal cargo — bolt and cable seal compatibility for rear door hasps
EN 12830
Recording thermometers for refrigerated transport — drives sealed-port hardware spec around probe entries
IEC 60529 IP65 / IP66
Outdoor reefer ingress protection — gasket + lock seal selection for trailer and container doors
SUS304 / SUS316 (≥720 h salt spray)
Coastal port and ocean container deployments — mandatory for ISO reefer hardware
GDP (EU GMP Annex 9 / WHO)
Good Distribution Practice for medicinal cold chain — audit-trail smart locks and tamper-evident seals
ANSI BHMA Grade 1
200 K+ cycle rating — fleet trucks that cycle 30+ times/day for 8+ years

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Custom Cold-Chain Hardware?

Food-grade EPDM gaskets, -40°C low-temperature SUS304 hinges, GDP audit-trail smart locks, ISO 17712 container seals — send your specs for a custom quote.

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