SL-4000-20 Extended Vertical Drive Rotary Latch
The SL-4000-20 extended vertical drive rotary latch fits industrial enclosures and equipment doors where standard vertical drive space is limited, providing reliable rod-driven latching in a compact envelope.
- SKU : sl-4000-20 · 4000-20 · 4000/20
The SL-4000-20 Extended Vertical Drive Rotary Latch is engineered for industrial enclosures and equipment doors where standard vertical drive space is limited or a longer drive stroke is required. Its extended drive structure delivers dependable latching in single-stage or dual-stage configurations, with left-hand and right-hand orientations to fit any door layout. Mounting is flexible 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 — making it a reliable choice for OEM volume supply and custom-built applications.
Key Features
Extended vertical drive design — ideal for limited drive space or long-stroke requirements
Single-stage / dual-stage latching options
Left-hand / right-hand orientations available
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
OEM bulk supply and customization supported
Detailed Specifications
Model | Grade & Direction | Mounting Method | Drive Method | Material |
|---|---|---|---|---|
SL-4000-11-20 -10 | Single stage (optional double stage), left | Ф6.4 through hole (optional M6x1 thread) | Extended Vertical Drive | Galvanized Steel (Optional Stainless Steel) |
SL-4000-21-20 -10 | Single pole (optional double pole), right | Ф6.4 through hole (optional M6x1 thread) | Extended Vertical Drive | Galvanized Steel (Optional Stainless Steel) |
Applications
Engineering vehicle service & maintenance doors
RV & trailer storage compartment doors
Pickup & truck toolboxes
Agricultural & construction machinery doors
Outdoor equipment enclosures & generator doors
Related Industries
Frequently Asked Questions
View All→References
- ISO 20653:2023, Road vehicles — Degrees of protection (IP code) — Protection of electrical equipment against foreign objects, water and access, International Organization for Standardization
- ASTM B117-19, Standard Practice for Operating Salt Spray (Fog) Apparatus, ASTM International
- IEC 62262:2002+A1:2021, Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code), International Electrotechnical Commission
How To
1. Confirm the longer drive stroke is what the door needs
The extended drive structure is for doors where standard vertical drive space is limited or a longer stroke is required; measure the door's pull-in travel before choosing this over the standard 4000-10.
2. Set the stage count and handing on the order
Single-stage or dual-stage engagement and left- or right-hand orientation are specified at order time — getting handing wrong means the linkage routes the wrong way across the door.
3. Mount through the Ø6.4mm hole or M6×1 thread
Both fixing options are in the drawing; the threaded connection suits thinner frames, the through hole thicker castings.
4. Match the pin strike to the striker height
The latch accepts a pin strike up to 9.6 mm; check the striker pin diameter and the engagement depth together.
5. Stay within the 3,300 N ultimate load
Ultimate load is 3,300 N for both the zinc-plated and stainless builds; size the door gasket compression so the latch is not working at its ceiling.
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 |
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