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-4001-11 Direct Drive Rotary Lock

The SL-4001-11 direct drive rotary latch offers smooth, dependable latching for light- to medium-duty door panels in a compact direct-drive structure.

SKU : sl-4001-11 · 4001-11 · 4001/11

The SL-4001-11 Direct Drive Rotary Latch features a compact direct drive design, delivering smooth, dependable latching for light- to medium-duty door panels. It supports single-stage and dual-stage configurations, with mounting via a Ø4.5mm through hole or M4×0.7 / 8-32 UNC threaded connection. Supplied with a mounting bracket and integrated cushioning device for quiet, vibration-resistant closing, the latch is available in zinc-plated steel or stainless steel. It accommodates a pin strike up to 6.4mm and handles ultimate loads up to 2600N — ideal for industrial door panels, equipment access covers, vehicle enclosures, and dust-proof sealing applications. Custom builds, sample validation, and OEM volume supply are fully supported for engineering projects.

Rotary Latch Stainless Steel Vibration Resistant Industrial Hardware

Key Features

Compact direct drive design — smooth, reliable actuation
Single-stage / dual-stage latching options
Mounting: Ø4.5mm through hole or M4×0.7 / 8-32 UNC thread
Mounting bracket included
Integrated cushioning device — quiet, vibration-resistant closing
Material options: zinc-plated steel or stainless steel
Maximum pin strike: 6.4mm
Ultimate load capacity: 2600N
Customization, sample validation & OEM volume supply supported

Detailed Specifications

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