What is your minimum order quantity?

Our MOQ starts from 50 pieces per SKU, for both catalog items and custom OEM programs. Lower quantities for prototype or trial orders are negotiable — tell us about your project and we will work it out with you.

What is the typical lead time?

Standard products: 2-4 weeks. Custom projects: 4-8 weeks depending on tooling and approval process.

Do you support ODM / OEM projects?

Absolutely. Our engineering team can develop custom locks, latches and handles from concept to mass production.

Can you ship samples for evaluation?

Yes, sample orders usually ship within 3-5 business days by air courier.

How do I request a quotation?

Use the contact form or email us with product SKU, estimated quantity and target market. We reply within 24 hours.

Rotary latch

SL-4001-32 Manual Drive Rotary Lock

The SL-4001-32 manual drive rotary latch combines a compact manual drive with an integrated release, so doors can be opened directly at the latch without extra hardware.

SKU : SL-4001-32 · 4001-32 · 4001/32

The SL-4001-32 Manual Drive Rotary Latch features a compact manual drive structure with an integrated manual release, allowing doors to be opened directly at the latch without additional linkage. Supplied with a mounting bracket and cushioning device for quiet, vibration-resistant closing, it mounts via Ø4.5mm through holes or M4×0.7 / 8-32 UNC threaded fasteners. Available in zinc-plated steel or stainless steel, the latch withstands ultimate loads up to 2600N — an ideal solution for light- to medium-duty industrial door panels, equipment access covers, vehicle enclosures, and sealed dust-proof applications where manual opening is required.

Rotary Latch Stainless Steel Vibration Resistant Sealed

Key Features

Compact manual drive design with integrated manual release
Mounting bracket & cushioning device included — quiet, vibration-resistant closing
Mounting: Ø4.5mm through holes or M4×0.7 / 8-32 UNC threaded fasteners
Material options: zinc-plated steel or stainless steel
Ultimate load capacity: 2600N
No external linkage required — direct manual opening at the latch
Suited to sealed, dust-proof environments
OEM volume supply and project customization supported

Detailed Specifications

Model	Grade	Mounting Method	Drive Method	Mounting Bracket	Material
SL-4001-32-11	Single-stage (optional double-stage)	Ф4.5 through hole (optional M4x0.7 thread, 8-32 thread)	Manual Drive	Have	Galvanized Steel (Optional Stainless Steel)
SL-4001-32-12	Single-stage (optional double-stage)	Ф4.5 through hole (optional M4x0.7 thread, 8-32 thread)	Manual Drive	None	Galvanized Steel (Optional Stainless Steel)
SL-4001-32-21	Single-stage (optional double-stage)	Ф4.5 through hole (optional M4x0.7 thread, 8-32 thread)	Manual Drive	Have	Galvanized Steel (Optional Stainless Steel)
SL-4001-32-22	Single-stage (optional double-stage)	Ф4.5 through hole (optional M4x0.7 thread, 8-32 thread)	Manual Drive	None	Galvanized Steel (Optional Stainless Steel)
SL-4001-32-31	Single-stage (optional double-stage)	Ф4.5 through hole (optional M4x0.7 thread, 8-32 thread)	Manual Drive	Have	Galvanized Steel (Optional Stainless Steel)
SL-4001-32-32	Single-stage (optional double-stage)	Ф4.5 through hole (optional M4x0.7 thread, 8-32 thread)	Manual Drive	None	Galvanized Steel (Optional Stainless Steel)