SL-4004-21 Two-Point Drive Rotary Lock
The SL-4004-21 two-point drive rotary lock is a high-strength rotary locking solution for industrial door panels and specialty vehicles, latching at two points from a single drive.
- SKU : sl-4004-21 · 4004-21 · 4004/21
The SL-4004-21 Two-Point Drive Rotary Lock is a high-strength rotary locking solution engineered for industrial door panels, specialty vehicles, and vibration-intensive machinery. Constructed from galvanized steel with an optional stainless steel upgrade, this lock features a two-point drive mechanism, single-stage or dual-stage engagement, and reversible left-hand / right-hand orientation for flexible integration across diverse equipment architectures.
Mounting is achieved via a Ф6.7 through-hole or threaded bosses in M6×1 and 1/4-20 UNF, ensuring broad compatibility with varying panel thicknesses and fabrication standards. The 3004-21 is available in standard or shock-absorbing configurations, accommodating a maximum pin size of 12.8 mm and withstanding ultimate loads up to 14,000 N without compromise to locking retention.
Its sealed, dustproof, and vibration-resistant design delivers dependable performance in the harshest operating environments where standard latches fail. Fully compliant with REACH Regulation (EC) No. 1907/2006, the 3004-21 is purpose-built for OEMs, vehicle modification shops, industrial enclosure manufacturers, and engineering project procurement requiring certified, bulk-quantity hardware.
Key Features
Two-point drive rotary mechanism for positive, high-strength mechanical locking
Single-stage or dual-stage engagement options to suit door sealing requirements
Reversible left-hand / right-hand installation for mirrored panel designs
Ф6.7 through-hole or M6×1 / 1/4-20 threaded mounting for versatile fixture compatibility
Galvanized steel body as standard; stainless steel option for corrosive environments
Standard or shock-absorbing structure variants to match application dynamics
Maximum pin size: 12.8 mm
Ultimate load capacity: 14,000 N
Sealed and dustproof construction for contaminant-heavy environments
Vibration-resistant design prevents loosening under sustained dynamic load
REACH Regulation (EC) No. 1907/2006 compliant — certified for EU and global markets
Detailed Specifications
Model | Grade & Direction | Mounting Method | Drive Method | Style | Material |
|---|---|---|---|---|---|
SL-4004-11-11-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Vertical Drive | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-12-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Vertical Drive | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-11-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Vertical Drive | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-12-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Vertical Drive | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-21-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Two-Point Drive | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-22-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Two-Point Drive | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-21-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Two-Point Drive | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-22-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Two-Point Drive | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-31-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Bottom Drive | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-32-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Bottom Drive | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-31-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Bottom Drive | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-32-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Bottom Drive | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-41-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Double Pull Rod - Bottom and Vertical | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-11-42-10 | Single stage (optional double stage), left | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Double Pull Rod - Bottom and Vertical | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-41-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Double Pull Rod - Bottom and Vertical | Standard | Galvanized Steel (Optional Stainless Steel) |
SL-4004-21-42-10 | Single pole (optional double pole), right | Ф6.7 through hole (optional M6x1 thread, 1/4 -20 thread) | Double Pull Rod - Bottom and Vertical | with shock absorption | Galvanized Steel (Optional Stainless Steel) |
Applications
Industrial door panels and access hatches
Specialty, heavy-duty, and modified vehicles
Construction, mining, and agricultural machinery cabs
Rail transit and fleet maintenance equipment
Industrial enclosures, switchgear cabinets, and control housings
Energy storage systems (ESS) and power distribution units
Vibration-intensive engine compartments and compressor housings
Sealed environmental chambers and dustproof operator cabins
Related Industries
Frequently Asked Questions
View All→References
- Regulation (EC) No 1907/2006, concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), European Union
- ISO 16750-3:2023, Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 3: Mechanical loads, International Organization for Standardization
- 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. Use the two-point drive to spread the clamp along the door
The two-point drive mechanism engages two locations from one lock body, evening out the seal pressure on long or flexible doors that single-point latches leave wavy.
2. Set handing and stage count at order time
Single- or dual-stage engagement with reversible left-hand / right-hand orientation — write both into the purchase order to avoid receiving the wrong build.
3. Match the striker hardware to the 12.8 mm pin
The lock accepts a maximum pin size of 12.8 mm; confirm striker pin diameter and the Φ6.7 through-hole or M6×1 / 1/4-20 UNF bosses together.
4. Budget within the 14,000 N rating
Ultimate load is 14,000 N; on specialty vehicles and vibration-intensive machinery, keep dynamic door loads well under the ceiling so retention stays reliable.
5. Order the stainless upgrade for outdoor fleets
For vehicle modification shops and outdoor enclosure programs, the optional stainless build pairs with the sealed, dustproof design for weather service.
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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