SL-4000-30 Top Drive Rotary Lock
The SL-4000-30 top drive rotary latch uses a compact top-mounted drive to deliver reliable latching where installation space above the door frame is limited.
- SKU : sl-4000-30 · 4000-30 · 4000/30
The SL-4000-30 Top Drive Rotary Latch features a compact top drive design, delivering reliable latching where installation space above the door frame is limited. It supports single-stage and dual-stage configurations, with flexible mounting via a Ø6.4mm through hole or M6×1 threaded connection. Available in zinc-plated steel or stainless steel, the latch accommodates a pin strike up to 9.6mm and handles ultimate loads up to 3300N. Designed without a cushioning device for a simple, robust structure, it is well suited to industrial enclosures, lightweight equipment doors, and dust-proof sealing on special vehicles — and is ready for OEM volume supply and custom production to meet the high-reliability, long-service demands of engineering projects.
Key Features
Compact top drive design for space-restricted installations
Single-stage / dual-stage latching options
Flexible mounting: Ø6.4mm through hole or M6×1 thread
Material options: zinc-plated steel or stainless steel
Maximum pin strike: 9.6mm
Ultimate load capacity: 3300N
Simple, robust structure without cushioning device
OEM bulk supply and custom production supported
Detailed Specifications
Model | Grade & Direction | Mounting Method | Drive Method | Material |
|---|---|---|---|---|
SL-4000-11-30 -10 | Single stage (optional double stage), left | Ф6.4 through hole (optional M6x1 thread) | Top Drive | Galvanized Steel (Optional Stainless Steel) |
SL-4000-21-30 -10 | Single pole (optional double pole), right | Ф6.4 through hole (optional M6x1 thread) | Top Drive | Galvanized Steel (Optional Stainless Steel) |
Applications
Engineering vehicle service & maintenance doors
RV & trailer storage compartment doors
Pickup & truck toolboxes
Agricultural & machinery equipment doors
Outdoor equipment enclosures & generator doors
Related Industries
Frequently Asked Questions
View All→References
- IEC 60529:1989+A1+A2, Degrees of protection provided by enclosures (IP Code), International Electrotechnical Commission
- IEC 61373:2010, Railway applications — Rolling stock equipment — Shock and vibration tests, International Electrotechnical Commission
- ASTM B117-19, Standard Practice for Operating Salt Spray (Fog) Apparatus, ASTM International
How To
1. Use the top drive where headroom above the frame is tight
The compact top drive design is made for installations where space above the door frame is limited; confirm the linkage routing clears the frame top before final mounting.
2. Pick the stage count for the door travel
Single-stage and dual-stage configurations cover short and longer pull-in distances; dual-stage gives more clamping travel on heavily gasketed light doors.
3. Fix via Ø6.4mm through hole or M6×1 thread
The two fixing options cover different frame gauges; use the threaded bosses where the frame is too thin to drill a clean through hole.
4. Accept the no-cushion trade-off on the right doors
This model is built without a cushioning device for a simpler, more robust structure — fine on lightweight equipment doors, but expect audible latching on doors that slam shut.
5. Hold gasket compression inside the 3,300 N rating
The latch carries ultimate loads up to 3,300 N; on dust-proof sealing applications, verify the gasket reaction force stays comfortably below that figure.
Ordering & customization terms
| MOQ from 100 pcs | details by product — ask us |
| OEM / ODM from 100 pcs | varies by product |
| Samples at actual cost | ~25 days if not in stock |
| Stock 10–15 days | production 15–20 days |
| T/T · PI in 24 h |
Need industrial locks built to your spec?
From prototype to volume order, our OEM team delivers reliable hardware on time.