DXL Safety Door Bolt (DXL-A / DXL-B)
Purely mechanical safety door bolt pre-drilled to mount DX-W2/W3/D2/D3 interlock switches directly.
▶ Watch it in action: Safety Light Curtain + Guard-Locking Door Switch Interlock — Wiring Demo
Technical Specifications
| Output type | No electrical output (purely mechanical door bolt; can be combined with an interlock switch for an integrated bolt-plus-interlock assembly) |
|---|---|
| DXL-A material | Zinc-alloy base/slide handle + stainless steel handle |
| DXL-A weight | 0.6 kg |
| DXL-A handle rod length | A-1 = 79 mm; A-2 = 106 mm |
| DXL-B material | Aluminum alloy + stainless steel handle + plastic ball knob |
| DXL-B mounting plate | B-1/B-2 = 326 mm; B-3 = 305/284 mm |
| Door gap range | 1-10 mm |
| Bolt travel | 48 mm |
| Mechanical life | 1,000,000 operations |
| Pre-drilled mounting provision | DX-W2 / DX-W3 / DX-D2 / DX-D3; Ø15 rear release hole |
Overview
DXL is a mechanical (non-electrical) safety door bolt used to physically hold shut a guard fence door or gate. It has no electrical output on its own — its role is to provide the mechanical locking/positioning of the door, with mounting provisions to add a DAIDISIKE interlock switch (DX-W2, DX-W3, DX-D2, or DX-D3) for electrical guard monitoring. It ships in two body styles: DXL-A (zinc-alloy base/slide handle with stainless steel handle) and DXL-B (aluminum-alloy base/slide handle with stainless steel handle and plastic ball knob).
It is intended for machine builders, fence/guarding integrators, and automation cell designers who are assembling perimeter safety fences for robot cells, CNC/press lines, or other automated equipment and need a mechanical bolt that can be paired with an electrical interlock switch to form a complete guard-door locking assembly. The bolt accommodates door gaps from 1 to 10 mm, has 48 mm of bolt travel, and carries a rated mechanical life of 1,000,000 operations.
Features & Benefits
Pre-drilled for direct interlock-switch mounting
The DXL base has a pre-drilled mounting pattern that accepts DAIDISIKE's DX-W2, DX-W3, DX-D2, or DX-D3 interlock switches directly, so the bolt and interlock switch can be assembled into a single bolt-plus-interlock guard-locking unit without custom brackets or field drilling.
Purely mechanical — no power, no wiring
DXL has no electrical output; it operates entirely mechanically and requires no power supply or cabling of its own. Electrical guard monitoring is provided by the interlock switch mounted on it.
1-10mm door gap tolerance
The bolt mechanism accommodates door gaps from 1 to 10 mm, tolerating typical on-site fence and gate fabrication and installation variance without field modification.
48 mm bolt travel with a rated 1,000,000-cycle mechanical life
The slide bolt has 48 mm of travel and a mechanical life rating of 1,000,000 operations, suiting sustained use on frequently accessed guard doors.
Two body materials for different weight/handle needs
DXL-A uses a zinc-alloy base and slide with a stainless steel handle (0.6 kg); DXL-B uses an aluminum-alloy base and slide with a stainless steel handle and plastic ball knob. DXL-A-2 and DXL-A-1 differ in handle-rod length (106 mm vs 79 mm), giving installers a choice for reach/clearance around the gate frame.
Ø15 rear release hole and multiple mounting-plate widths on DXL-B
DXL-B variants include a Ø15 mm rear unlocking/release hole and mounting-plate widths of 326 mm (B-1/B-2) or 305/284 mm (B-3), giving integrators options to match existing gate-frame hole spacing.
Five variants across two body styles
DXL-A-1, DXL-A-2, DXL-B-1, DXL-B-2, and DXL-B-3 give buyers a choice of material, handle length, and mounting-plate dimension to suit different door/gate constructions.
Applications
Models & Ordering Information
DXL-A (zinc-alloy base/slide handle)
DXL-B (aluminum-alloy base/slide handle)
How to Select
- Choose by base material: DXL-A has a zinc-alloy base (0.6 kg); DXL-B has an aluminum-alloy base. If body weight matters for your door construction, compare the two materials for your application.
- Choose handle-rod length (DXL-A only): DXL-A-1 has a 79 mm handle rod, DXL-A-2 has a longer 106 mm handle rod — pick A-2 when more reach or clearance around the gate frame is needed, A-1 for tighter spaces.
- Choose mounting-plate size (DXL-B only): DXL-B-1/B-2 use a 326 mm mounting plate, DXL-B-3 uses a 305/284 mm mounting plate — match to your gate-frame hole spacing to avoid field drilling.
- Decide whether you need an interlock switch: add a DX-W2, DX-W3, DX-D2, or DX-D3 interlock switch to DXL's pre-drilled mounting pattern if the guard door needs an electrical signal for a safety circuit; use DXL alone if only mechanical locking is required.
- Confirm door gap and stroke: verify the on-site door gap is within 1-10 mm and that the 48 mm bolt travel covers the door's opening/closing motion.
📘 Need the full method? How to Choose a Safety Door Switch / Interlock
When NOT to specify the DXL — and what to use instead
The door needs an electrical door-closed signal on its own, without adding a separate switch.
Why not: DXL has no electrical output of its own -- it is a purely mechanical bolt.
Use instead: Mount a DX-W2, DX-W3, DX-D2, or DX-D3 interlock switch onto DXL's pre-drilled provision
The guard must be actively held shut and released under safety-controller logic (e.g. only after hazardous motion stops).
Why not: DXL is a manually operated mechanical bolt; it has no solenoid-driven lock/release and no published resistance-to-forced-opening rating tied to controller logic.
Use instead: DX-D6, DX-W2, DX-W3, or DX-W5 solenoid guard-locking switches, which provide a rated holding force and controller-driven release
The on-site door gap falls outside 1-10 mm.
Why not: DXL's bolt mechanism is rated to accommodate door gaps from 1 to 10 mm only.
Use instead: Verify and correct the door/frame fabrication tolerance, or consult the factory for a bolt suited to the actual gap
The specification needs a quantified holding force resisting forced entry.
Why not: DXL's published data covers door gap, bolt travel, and mechanical life, but no holding-force rating for resisting forced opening is stated, unlike the solenoid door locks in the range.
Use instead: DX-W2, DX-W3, or DX-W5, which publish a 1300 N holding force
DXL-B is being specified for a weight-critical installation.
Why not: DXL-B's weight is currently unconfirmed -- one internal source states 1.05 kg while the latest PDF states 0.95 kg, and this discrepancy has not yet been resolved with the factory.
Use instead: Confirm the exact weight with the factory before finalizing a weight-sensitive design
Specifications we do not publish yet
We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.
- DXL-B weight (catalog vs. PDF discrepancy, 1.05 kg vs. 0.95 kg)
- Operating temperature range
- Holding force / resistance to forced opening for the bolt mechanism itself
- Certificate or compliance documentation
- Overall mechanism dimensions beyond mounting-plate width
- Corrosion-resistance/finish rating for washdown environments
Frequently Asked Questions
Does the DXL safety door bolt have any electrical output?
Can DXL be used on its own without an interlock switch?
What is the difference between DXL-A and DXL-B?
What door gap can the DXL bolt accommodate?
What is the bolt travel and rated mechanical life of DXL?
What is the difference between DXL-A-1 and DXL-A-2?
Which interlock switches is DXL designed to mount with?
How many DXL variants are available?
Works Well Together
On the same machine or line, DXL is typically ordered together with: Safety Relays · Safety Light Curtains · Safety Mats
DA31 Emergency-Stop Safety Relay Module
Ultra-slim 22.6 mm Category 4/PL e/SIL 3 safety relay with dual-channel PNP/NPN input and a solid-state status output.
DCE Automation Safety Light Curtain
Compact through-beam safety light curtain in a 30 x 30 mm housing: 10/20/30/40 mm beam pitch, up to 72 beams, 0.3-3 m or 0.3-6 m sensing distance, NPN/PNP output. Designed to the Type 4 architecture of IEC 61496-1/-3 and Category 4 (PLd) of ISO 13849-1.
JT14 Safety Mat (Economical)
Economical pressure-sensitive safety mat with volt-free N.O. output for large-area or custom-shape floor guarding.
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