OEM Manufacturer & Supplier
Compression Latches Manufacturer — IP65/IP67 Industrial Grade
IATF 16949 certified factory producing IP65/IP67 compression latches in zinc alloy, 304 SS, and 316 SS. Quarter-turn, lever handle, adjustable, and push-to-close types — 33 models, from prototype to 500K+ annual volume.
33
Models Available
IP67
Max Sealing Rating
IATF
16949 Certified
35+
Years Manufacturing
Compression Latch Types We Manufacture
Every compression latch converts rotational input into axial compression, but the handle geometry, actuation method, and cam design vary by application. We produce all four major types in-house.
Quarter-Turn Compression Latches
Flush-mounted with coin slot, hex, or triangular drive. 90° rotation locks and compresses. Lowest profile — ideal for indoor server racks and control panels where tool-operated access is acceptable.
Stroke: 2–4 mm • Depth: 22–32 mm
Adjustable Compression Latches
Cam stroke adjustable on-site to compensate for panel tolerance and gasket set over time. Threaded shaft or eccentric cam allows ±2 mm fine tuning without replacing the latch.
Stroke: 3–8 mm • Adjustable ±2 mm
Key-Locking Compression Latches
Integrated cylinder lock prevents unauthorized access. Keyed-alike, keyed-different, and master-keyed options. Essential for outdoor telecom cabinets, EV charging enclosures, and electrical panels requiring LOTO compliance.
Lock types: Pin tumbler, Tubular, Disc detainer
Lever Handle Compression Latches
L-shaped or T-shaped handle provides manual leverage for compressing heavy gaskets on large enclosure doors. Tool-free operation preferred for HVAC, genset, and food processing equipment with frequent access.
Stroke: 3–6 mm • Depth: 28–45 mm
Compression Latch Selection Guide
Choose the right compression latch based on IP rating, material, and panel thickness requirements. All models support OEM customization of cam length, keying, and finish.
| Model Series | Type | Material | IP Rating | Compression Stroke | Panel Thickness | Lock Type |
|---|---|---|---|---|---|---|
| MS703 | Quarter-turn | Zinc alloy | IP54 | 2–3 mm | 1.0–3.0 mm | Tool-operated |
| MS708 series | Push-button lever | Zinc alloy / SS304 | IP65 | 3–5 mm | 1.0–3.0 mm | Key lock optional |
| MS712 | Flush quarter-turn | Zinc alloy | IP65 | 2–4 mm | 1.0–2.5 mm | Coin slot / hex |
| MS730 series | Key-locking lever | Zinc alloy / SS304 | IP65–IP66 | 3–6 mm | 1.0–3.5 mm | Pin tumbler key |
| MS740 series | Adjustable compression | SS304 / SS316 | IP66–IP67 | 3–8 mm adjustable | 1.0–4.0 mm | Key or tool |
| Custom | Per spec | SS316 / Zamak 5 | Up to IP67 | Custom cam | Custom | All options |
Materials, Finishes & IP Ratings
Material Options
Zamak 5 Zinc Alloy (Die-Cast)
Most economical. Standard for indoor enclosures (IP54–IP65). Chrome-plated or powder-coated. Tensile strength 328 MPa. Salt spray 200+ hours with chrome finish.
304 Stainless Steel
Outdoor and industrial standard. IP65–IP66. Passivated or brushed finish. Salt spray 500+ hours. Suitable for HVAC, genset, and general outdoor cabinets.
316 Stainless Steel
Marine and food-grade. IP66–IP67 / NEMA 4X. Salt spray 1,500+ hours per ASTM B117. Required for washdown, chemical, and coastal environments. 2–2.5x cost premium over zinc.
Engineering Plastics (PA / POM)
Non-conductive, lightweight. For applications requiring electrical isolation. UV-stabilized grades available for outdoor use. Injection molded in-house.
IP & NEMA Rating Guide
| IP Rating | NEMA Equiv. | Protection Level | Recommended Material |
|---|---|---|---|
| IP54 | NEMA 12 | Dust-protected, splash | Zinc alloy |
| IP65 | NEMA 4 | Dust-tight, water jets | Zinc / SS304 |
| IP66 | NEMA 4 | Dust-tight, powerful jets | SS304 / SS316 |
| IP67 | NEMA 4X | Dust-tight, immersion 1m | SS316 |
Vibration Resistance
Unlike plain quarter-turn locks that loosen under vibration, compression latches preload the door against its gasket. The gasket acts as a spring that keeps the cam seated. For vehicle-mounted, genset, rail, and marine enclosures we specify compression latches with a detented cam as standard — the cam clicks into position and requires intentional force to rotate back, preventing vibration walk-out. Our latches passIEC 60068-2-6 vibration testing at 10–55 Hz, 0.75 mm amplitude.
Why Buy Compression Latches from Hengchieh — Factory Direct
Vertically Integrated Manufacturing
Die casting, stamping, CNC machining, surface treatment, and assembly under one roof at our 13,000 m² Ningbo facility. No inter-factory handoffs — tighter quality control, shorter lead times.
NEMA 4/4X & IP65–IP67 Rated
Compression latches with integral gaskets and controlled compression force. Tested to IEC 60529 for dust and water ingress protection on outdoor enclosures. Gasket compression calculations provided for every project.
Flexible MOQ & Mold Subsidies
Starting MOQ of 500 pieces for catalogue items. Mold costs subsidized 30–100% based on annual volume commitment. CNC prototypes in 7–10 days before tooling.
OEM Custom Cam Geometry
Custom cam length, stroke, and compression travel engineered to match your specific gasket and panel thickness. One body + one cutout across your product range reduces tooling cost and simplifies sheet metal.
Keyed-Alike Across Orders
Key number databases maintained across production batches. Your technician opens 500 enclosures across 10 sites with one key. Master-key hierarchies supported.
Fast Lead Times
Stock items ship within 7 days. Custom orders: 20–35 days from DFM approval. Located 30 minutes from Ningbo port for efficient global shipping to 20+ countries.
Best-Selling Compression Latch Models
Browse our top-selling models. All models available for OEM customization — materials, finishes, keying, and cam geometry.
MS703
Plane Locks MS703
MS707
Plane Locks MS707
MS708
Button Plane Lock Lever Lock MS708
Plastic / Zinc Alloy / Steel
MS708A
Button Plane Lock Lever Lock MS708A
Plastic / Zinc Alloy / Steel / Brass
MS708B
Button Plane Lock Lever Lock MS708B
Plastic / Zinc Alloy / Steel / Brass
MS708C
Plane Locks MS708C
Plastic / Zinc Alloy / Steel / Brass
MS712
Plane Locks MS712
MS713
Plane Locks MS713
Application Sectors
Telecom & 5G Cabinets
IP65/IP66 compression latches for outdoor telecom cabinets, cell tower equipment shelters, and 5G small cell enclosures. Keyed-alike across multi-site deployments. 304 SS standard, 316 SS for coastal sites.
Electrical Distribution
NEMA 4/4X rated compression latches for MCCs, switchgear, and distribution panels. OSHA lockout/tagout compatible with padlock provisions. Multi-point locking with rod systems for large doors.
HVAC & Mechanical Equipment
Vibration-resistant compression latches for air handling units, chiller enclosures, and rooftop equipment. Detented cams prevent walk-out under continuous vibration. Adjustable stroke compensates for gasket aging.
EV Charging Stations
IP66 compression latches for Level 2 and DC fast charging cabinets. Anti-tamper key cylinders protect power electronics. See EV charging hardware →
Food Processing & Washdown
316 stainless steel with silicone gaskets for IP66/IP69K washdown environments. Smooth, crevice-free bodies for hygienic design. FDA/USDA compliant surface finishes.
Data Centers & Server Rooms
Low-profile compression latches for acoustic enclosures, containment panels, and edge deployments. EIA-310 compatible. Keyed-alike across hundreds of racks. See server rack security →
OEM Customization Options
Most of our OEM customers standardize on one compression latch body and one cutout across their product range. We customize only what matters — cam geometry, keying, and finish — to reduce your tooling cost and simplify sheet metal fabrication.
1
DFM Review
Send drawings or describe requirements. DFM feedback within 24 hours.
2
CNC Prototypes
Functional samples in 7–10 days for fit and seal testing before tooling.
3
Tooling & Pilot
Die-cast tooling in 30–45 days. Pilot batch for production validation. Mold subsidy available.
4
Mass Production
20–35 day lead time. Annual capacity 500K+ pieces. Ningbo port proximity.
Compression Latch Technical Resources
Compression Latch Guide: Types, Sizing & Gasket Force
Complete selection guide: quarter-turn, lever & key-locking types. 33 IP65–IP67 models with gasket sizing data and load specifications.
Compression Latch vs Quarter-Turn: Factory Test Data
Sealing force, depth, cost, and vibration performance compared. Real factory test data and selection decision tree.
Compression Latch Applications: Data Center, EV, HVAC & Food
Which compression latch for which enclosure? Material, stroke, IP rating, and MOQ specs by industry sector.
Compression Cam Latch Selection: 4 Types Compared
Hidden vs exposed, adjustable vs fixed, keyed vs tool-operated. IP66 sealing data and clamp-range chart.
Waterproof Enclosure Lock Guide (IP65/IP66/IP67)
How to specify locks that maintain your enclosure’s IP rating. Gasket selection, compression force, and testing standards.
Our Die Casting Capabilities
Zinc and aluminum die casting with ±0.05mm tolerances. In-house tooling and surface treatment for compression latch bodies.
Frequently Asked Questions
What is a compression latch used for?▼
A compression latch secures enclosure doors while compressing a gasket to create dust-tight and water-resistant seals. They are used on electrical distribution cabinets, telecom enclosures, HVAC equipment housings, EV charging stations, data center cabinets, food processing equipment, and any application requiring IP65 to IP67 environmental protection.
What IP rating can your compression latches achieve?▼
With proper gasket selection, our compression latches achieve IP54 through IP67. Standard EPDM gaskets reach IP65 (NEMA 4). Silicone gaskets with 316 stainless steel bodies reach IP66/IP67 (NEMA 4X). We provide gasket compression calculations for each project to ensure your enclosure meets its target rating.
What is the MOQ for custom compression latches?▼
MOQ is 500 pieces for catalogue models with standard finishes. Custom cam length, keying, or handle design requires 2,000 pieces minimum. CNC prototype samples ship in 7–10 days before tooling commitment. New die-cast tooling runs 30–45 days. Mold costs subsidized 30–100% based on annual volume.
What materials are available for compression latches?▼
Standard materials include Zamak 5 zinc alloy (die-cast), 304 stainless steel (outdoor), 316 stainless steel (marine/food/NEMA 4X), and engineering plastics (non-conductive). Finishes include bright chrome, powder coating (RAL colors), brushed stainless, and black oxide. 316 SS passes 1,500+ hour salt spray per ASTM B117.
What is the difference between a compression latch and a quarter-turn lock?▼
Both rotate 90 degrees, but a quarter-turn lock only swings a flat cam to hold the door closed with no compression force. A compression latch uses a ramped cam that converts rotation into 2–8 mm of axial travel, actively pulling the door against its gasket for an IP65+ seal. Read our detailed compression latch vs quarter-turn comparison.
Can compression latches be keyed alike?▼
Yes. Key-locking compression latches come in keyed-alike, keyed-different, and master-keyed configurations. We maintain key databases across production batches for consistency — your technician opens every enclosure across multiple sites with one key.
Need Custom Compression Latches?
Send us your drawings or describe your requirements. DFM review within 24 hours, CNC samples in 7–10 days. MOQ 500 pcs for catalogue items.