DX-W5 / DX-D2D3 / DX-W3 / DX-W2 Industrial Machine Tool Safety Door Locks
DX-W5, DX-D2 / D3, DX-W3 and DX-W2 industrial machine safety door interlocks from Foshan DAIDISIKE safeguard operators by combining mechanical interlocking with electromagnetic locking to keep doors secured until hazards are removed. Engineered for machine tools, automated lines and high-risk cells, the DX series complies with IEC/EN 60947-5-1 and GB 14048.5-2017, delivering reliable protection that reduces risk while supporting productive operations.
Product Introduction
In modern industrial production, machine tool safety door locks serve as essential equipment to safeguard operator safety and prevent accidents. As a specialized manufacturer of optoelectronic safety protection products, Foshan Daidisike Optoelectronic Technology (DAIDISIKE) introduces the DX series safety door lock product line — DX-W5, DX-D2 / D3, DX-W3, and DX-W2. These products are engineered for industrial machine tools, integrating mechanical interlock and electromagnetic locking technologies to ensure safety doors remain securely locked until hazardous conditions are fully resolved. They adhere to international standards including IEC/EN 60947-5-1 and GB 14048.5-2017. Whether deployed in automated production lines or high-risk isolation zones, the DX series delivers reliable protection that lets enterprises keep productivity up while minimizing safety hazards.
Advantages and Benefits of the DX Series Safety Door Locks
The DAIDISIKE DX series stands out in the industrial-safety domain through superior design and performance. Key advantages include:
- Compact and lightweight design: small size and low weight fit sliding doors, hinged doors and various protective-door configurations — reducing on-site modification expenses.
- Diverse contact configurations and locking capabilities: gold-plated contacts with up to 6 groups of combinations (model-dependent); electromagnetic locking models provide a holding force of up to 1300 N, suitable for both standard and micro-load applications.
- Exceptional compatibility: compatible with 11 types of operating keys and adjustable in up to 8 insertion directions. Selected models include front/rear emergency unlocking.
- Reliability and durability: high-strength wear-resistant engineering-plastic housings with internal 304 stainless-steel components. Forced mechanical interlock self-detection. Mechanical life > 1,000,000 cycles; electrical life > 150,000 cycles (up to 300,000 in some models). IP67 protection (excluding the keyhole).
- Compliance & smart indicators: green LED status indicators and emergency unlock functions. Meets EN ISO 14119 and GB/T 18831-2002.
- Cost-effectiveness: minimal maintenance, extended equipment life, low long-term operational costs — space-saving design for constrained machine-tool environments.
- Wide application scope: machine tools, robot-arm guarding, hazardous test zones — strengthens overall safety management.
These strengths stem from DAIDISIKE's extensive R&D expertise, ensuring consistent and efficient performance in real-world applications.
Detailed Product Specifications
Each DX series model varies slightly in specifications. The tables below detail the parameters drawn from manufacturer datasheets. They apply to ambient temperatures of −20 °C to +60 °C (no icing) and humidity below 85 %RH. All models use gold-plated silver-alloy contacts with Class B insulation (130 °C).
DX-W5 Series — Specifications & Parameters
Features: metal head, 6 sets of gold-plated contacts, 4 contact combinations, DC 24 V / AC 110 V, locking force 1300 N, indicator light + emergency unlocking. Compatible with 11 types of operating keys. Suitable for monitoring safety doors and windows with high-strength wear-resistant engineering plastic and built-in 304 stainless-steel components. Forced mechanical interlocking self-detection for extreme reliability.
| Category | Parameter | Value |
|---|---|---|
| Electrical | Rated voltage | 10 – 115 V AC/DC |
| Rated current | 1 mA | |
| Light source color | Green | |
| Rated working voltage | DC 24 V ± 10 % | |
| Rated current | 200 mA (initial value) | |
| Rated power | 4 W | |
| Rated insulation voltage (Ui) | 300 V | |
| Rated impulse withstand voltage (Uimp) | 2.5 kV | |
| Rated open thermal current (Ith) | 10 A | |
| Use category | AC-15 / DC-13 | |
| Rated working voltage (Ue) | 240 V / 30 V / 250 V | |
| Rated operating current (Ie) | 3 A / 2.3 A / 0.27 A | |
| Mechanical | Dimensions (W × H × L) | 39 × 39 × 118 mm |
| Insulation class | Class B (130 °C) | |
| Shell material | PA66 flame-retardant | |
| Contact material | Gold-plated silver alloy | |
| Protection level | IP67 (EN 60947-5-1, except key hole) | |
| Service life | Electrical > 150,000 cycles | |
| Tensile strength when locked | 1300 N | |
| Forced disengagement force | ≥ 80 N | |
| Forced breakout distance | ≥ 10 mm | |
| Allowable operating speed | 0.05 – 0.5 m/s | |
| Allowable operating frequency | Up to 20 operations/min | |
| Environmental | Ambient temperature | −20 °C to +60 °C (no freezing) |
| Environment humidity | Below 85 %RH |
DX-W3 Series — Specifications & Parameters
Features: metal head, 2 sets of gold-plated contacts, 6 contact combinations, locking force 1300 N, indicator light + emergency unlock. Adapts to 11 kinds of operating keys. Compact design saves space.
| Category | Parameter | Value |
|---|---|---|
| Electrical | Rated voltage | DC 24 V |
| Rated current | 1 mA | |
| Light source color | Green | |
| Rated working voltage | DC 24 V ± 10 % | |
| Rated current | 200 mA (initial value) | |
| Rated power | 4 W | |
| Rated insulation voltage (Ui) | 300 V | |
| Rated impulse withstand voltage (Uimp) | 2.5 kV | |
| Rated open thermal current (Ith) | 10 A | |
| Use category | AC-15 / DC-13 | |
| Rated working voltage (Ue) | 240 V / 30 V | |
| Rated operating current (Ie) | 3 A / 2.3 A | |
| Mechanical | Dimensions (W × H × L) | 39 × 39 × 118 mm |
| Insulation class | Class B (130 °C) | |
| Shell material | PA66 flame-retardant | |
| Contact material | Gold-plated silver alloy | |
| Protection level | IP67 (EN 60947-5-1, except key hole) | |
| Service life | Electrical > 150,000 cycles | |
| Tensile strength when locked | 1300 N | |
| Forced disengagement force | ≥ 80 N | |
| Forced breakout distance | ≥ 10 mm | |
| Allowable operating speed | 0.05 – 0.5 m/s | |
| Allowable operating frequency | Up to 20 operations/min | |
| Environmental | Ambient temperature | −20 °C to +60 °C (no freezing) |
| Environment humidity | Below 85 %RH |
DX-W2 Series — Specifications & Parameters
Features: metal head, 4 sets of gold-plated contacts, 14 contact combinations, locking force 1300 N, indicator light + emergency unlocking. Optional back-unlocking function.
| Category | Parameter | Value |
|---|---|---|
| Electrical | Rated voltage | DC 24 V |
| Rated current | 1 mA | |
| Light source color | Green | |
| Rated working voltage | DC 24 V ± 10 % | |
| Rated current | 200 mA (initial value) | |
| Rated power | 4 W | |
| Rated insulation voltage (Ui) | 300 V | |
| Rated impulse withstand voltage (Uimp) | 2.5 kV | |
| Rated open thermal current (Ith) | 10 A | |
| Use category | AC-15 / DC-13 | |
| Rated working voltage (Ue) | 240 V / 30 V | |
| Rated operating current (Ie) | 3 A / 2.3 A | |
| Mechanical | Dimensions (W × H × L) | 39 × 39 × 118 mm |
| Insulation class | Class B (130 °C) | |
| Shell material | PA66 flame-retardant | |
| Contact material | Gold-plated silver alloy | |
| Protection level | IP67 (EN 60947-5-1, except key hole) | |
| Service life | Electrical > 150,000 cycles | |
| Tensile strength when locked | 1300 N | |
| Forced disengagement force | ≥ 80 N | |
| Forced breakout distance | ≥ 10 mm | |
| Allowable operating speed | 0.05 – 0.5 m/s | |
| Allowable operating frequency | Up to 20 operations/min | |
| Environmental | Ambient temperature | −20 °C to +60 °C (no freezing) |
| Environment humidity | Below 85 %RH |
DX-D2 / DX-D3 Series — Specifications & Parameters
Features: full range of gold-plated contacts, 5 contact structures, suitable for standard and small loads, adjustable up to 8 directional key operation holes, compatible with 11 operating keys. Compliant with IEC/EN 60947-5-1 and GB 14048.5-2017.
| Category | Parameter | Value |
|---|---|---|
| Performance | Applicable standard | IEC/EN 60947-5-1 / GB 14048.5-2017 |
| Protection level | IP65 / IP67 (EN 60947-5-1, except key hole) | |
| Service life | Mechanical > 1,000,000 cycles / Electrical > 300,000 cycles | |
| Rated insulation voltage (Ui) | 400 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Rated open thermal current (Ith) | 8 A | |
| Use category | AC-15 | |
| Rated operating voltage (Ue) | AC 400 V | |
| Rated operating current (Ie) | 2 A | |
| Mechanical | Forced disengagement force | ≥ 60 N |
| Forced breakup distance | ≥ 10 mm | |
| Operating frequency | ≤ 20 times/min | |
| Allowable operating speed | 0.05 – 0.5 m/s | |
| Environmental | Ambient temperature | −20 °C to +60 °C (no freezing) |
| Environment humidity | Below 85 %RH |
Application Information
The DX series safety door locks are widely used in industrial machine tools and automation equipment, ensuring doors are locked during machine operation to prevent unauthorized entry into hazardous areas. Typical applications include:
- Automated production lines: machine-tool protective doors, locked until the machine stops — compliant with GB/T 18831-2002.
- Robot production areas: safety doors around robot arms to prevent accidental collisions.
- Hazardous testing zones: high-pressure test benches with forced locking to avoid exposure risks.
- Isolation sites: chemical storage and radiation areas — dependable isolation protection.
In practical deployments we recommend combining with light curtain sensors or safety mats for a multi-layered safety system. During installation, ensure the key direction matches the door type, and conduct regular checks on contact points to maintain reliability.
Product Model List
Common models — customizable on request. GD = electromagnetic locking / mechanical unlocking; GC = mechanical locking / electromagnetic unlocking; J = metal head.
DX-W2 Series
GD — Electromagnetic Locking, Mechanical Unlocking:
- DX-W2-CO/CO-GD-J
- DX-W2-CO/2C-GD-J
- DX-W2-2C/CO-GD-J
- DX-W2-2C/2C-GD-J
- DX-W2-C2O/C-GD-J
- DX-W2-3C/C-GD-J
- DX-W2-2CO/C-GD-J
- DX-W2-C/3C-GD-J
- DX-W2-C/C2O-GD-J
- DX-W2-C/2CO-GD-J
- DX-W2-O/3C-GD-J
- DX-W2-O/2CO-GD-J
- DX-W2-2C/2O-GD-J
- DX-W2-2O/2C-GD-J
GC — Mechanical Locking, Electromagnetic Unlocking:
- DX-W2-CO/CO-GC-J
- DX-W2-CO/2C-GC-J
- DX-W2-2C/CO-GC-J
- DX-W2-2C/2C-GC-J
- DX-W2-C2O/C-GC-J
- DX-W2-3C/C-GC-J
- DX-W2-2CO/C-GC-J
- DX-W2-C/3C-GC-J
- DX-W2-C/C2O-GC-J
- DX-W2-C/2CO-GC-J
- DX-W2-O/3C-GC-J
- DX-W2-O/2CO-GC-J
- DX-W2-2C/2O-GC-J
- DX-W2-2O/2C-GC-J
Contact Types (Door monitoring + Lock monitoring):
- CO/CO (1NC/1NO + 1NC/1NO)
- CO/2C (1NC/1NO + 2NC)
- 2C/CO (2NC + 1NC/1NO)
- 2C/2C (2NC + 2NC)
- C2O/C (1NC/2NO + 1NC)
- 3C/C (3NC + 1NC)
- 2CO/C (2NC/1NO + 1NC)
- C/3C (1NC + 3NC)
- C/C2O (1NC + 1NC/2NO)
- C/2CO (1NC + 2NC/1NO)
- O/3C (1NO + 3NC)
- O/2CO (1NO + 2NC/1NO)
- 2C/2O (2NC + 2NO)
- 2O/2C (2NO + 2NC)
DX-W3 Series
GD — Electromagnetic Locking, Mechanical Unlocking:
- DX-W3-C/C-GD-J
- DX-W3-/2C-GD-J
- DX-W3-2C/-GD-J
- DX-W3-CO/-GD-J
- DX-W3-O/C-GD-J
- DX-W3-/CO-GD-J
GC — Mechanical Locking, Electromagnetic Unlocking:
- DX-W3-C/C-GC-J
- DX-W3-/2C-GC-J
- DX-W3-2C/-GC-J
- DX-W3-CO/-GC-J
- DX-W3-O/C-GC-J
- DX-W3-/CO-GC-J
Contact Types (Door monitoring + Lock monitoring):
- C/C (1NC + 1NC)
- —/2C (none + 2NC)
- 2C/— (2NC + none)
- CO/— (1NC/1NO + none)
- O/C (1NO + 1NC)
- —/CO (none + 1NC/1NO)
DX-W5 Series
GD — Electromagnetic Locking, Mechanical Unlocking:
- DX-W5-2CO/2CO-GD-J
- DX-W5-3C/2CO-GD-J
- DX-W5-2CO/3C-GD-J
- DX-W5-3C/3C-GD-J
GC — Mechanical Locking, Electromagnetic Unlocking:
- DX-W5-2CO/2CO-GC-J
- DX-W5-3C/2CO-GC-J
- DX-W5-2CO/3C-GC-J
- DX-W5-3C/3C-GC-J
Contact Types (Door monitoring + Lock monitoring):
- 2CO/2CO (2NC/1NO + 2NC/1NO)
- 3C/2CO (3NC + 2NC/1NO)
- 2CO/3C (2NC/1NO + 3NC)
- 3C/3C (3NC + 3NC)
DX-D2 / DX-D3 Series
Supports 3 types of contact structure. Specific models such as DX-D2-CO/CO, DX-D3-2C/CO, etc. For complete details please consult the manufacturer.
Frequently Asked Questions
What is the difference between GD and GC variants of the DX safety door locks?
GD means electromagnetic locking with mechanical unlocking: the solenoid holds the door locked and a key releases it. GC means mechanical locking with electromagnetic unlocking. Both share the metal head, gold-plated silver-alloy contacts and 1300 N holding force. Choose GD for power-to-lock guarding where the door must stay shut while the machine runs, and GC where the lock must hold mechanically on power loss.
Do the DX series door locks comply with ISO 14119 for interlock guard monitoring?
Yes. The DX series is designed to EN ISO 14119 and GB/T 18831-2002 for interlocking devices, and the contacts meet IEC/EN 60947-5-1 and GB 14048.5-2017. Forced mechanical interlock self-detection and direct-opening (positive-break) NC contacts let you monitor guard-door position and lock status in a dual-channel safety circuit feeding a safety relay or safety PLC.
How much holding force do the DX safety door locks provide and what is the mechanical life?
Electromagnetic locking models deliver a holding force (tensile strength when locked) of up to 1300 N, with forced disengagement force of at least 60–80 N and a breakout distance of 10 mm. Mechanical life exceeds 1,000,000 cycles and electrical life ranges from 150,000 to 300,000 cycles depending on model, making the DX series suitable for high-frequency machine-tool guard doors.
What IP rating do the DX series interlocks have and where can they be installed?
The DX series carries an IP67 housing (IP65/IP67 on DX-D2/D3), tested to EN 60947-5-1, excluding the keyhole. It operates from −20 °C to +60 °C with no freezing and under 85 %RH humidity. This suits machine tools, robot-arm guarding, hazardous test benches and chemical or radiation isolation zones where dust and washdown resistance matter.
How many contact configurations and key directions does the DX series support?
Contact configurations depend on the model: DX-W5 offers 4 combinations with 6 contact sets, DX-W3 offers 6 combinations, and DX-W2 offers 14 combinations with 4 contact sets. The DX-D2/D3 supports adjustable key entry in up to 8 directions and is compatible with 11 types of operating keys, so you can match almost any sliding or hinged guard-door layout.
Specs reviewed by Engineer Cai, Senior Application Engineer. Designed to IEC/EN 60947-5-1 and EN ISO 14119 — see certificates.
Safety Light Curtain — Customer Cases
Real installations from DAIDISIKE clients. Click any case to view in full. Filter by scenario to quickly find a similar setup.