Anti-Drill Double Euro Cylinder | High-Security Door Hardware Specification
Product Overview & Technical Specifications
Engineered for commercial, industrial, and high-risk residential access points requiring verified physical attack resistance. Manufactured from forged high-purity brass and reinforced with hardened steel defense pins, this cylinder prevents core destruction via twist-drill bits and rotary tools.
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Technical Parameter |
Specification Standard |
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Housing & Plug Material |
CuZn40Pb2 (CW617N) Forged Brass |
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Anti-Drill Protection |
Hardened carbon steel pins (>= 60 HRC) inserted in rotor and stator |
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Attack Resistance |
EN 1303:2015 Grade 2 (Maximum drill resistance) |
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Durability Cycle |
>= 100,000 test cycles |
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Standard Profiles |
Euro Profile (DIN 18252 / EN 1303 compliant) |
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Surface Finish |
Satin Nickel Plated (SN), Polished Brass (PB), PVD Black |
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Keyway Options |
Restricted profile / Anti-picking paracentric keyway |
Product Selection Guide
Configure cylinder dimensions, cam offsets, and keying hierarchies based on door thickness and access control requirements.
Step 1: Dimension Sizing (A / B mm)
Measure from the center of the fixing screw hole to the outer and inner edge of the door plate.
• Standard Sizes: 30/30 mm, 30/35 mm, 35/35 mm, 40/40 mm up to 70/70 mm.
• Asymmetrical Options: Available for offset armored plates or insulated security doors.
Step 2: Keying System Integration
• Keyed Different (KD): Each cylinder operates with its own unique key set.
• Keyed Alike (KA): Multiple cylinders operated by a single key (ideal for multi-door commercial bays).
• Master Keyed (MK): Hierarchical access structured for facility managers, sub-contractors, and tenants.
Application Suitability Matrix
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Application Environment |
Primary Risk Factor |
Recommended Specification |
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Server Rooms & Data Centers |
Forced entry / Core drilling |
6-pin dual-action cylinder with tungsten carbide anti-drill inserts |
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Commercial Perimeter Doors |
Environmental corrosion & brute force |
Salt spray tested (>= 96h) brass body with hardened steel pins |
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Utility Enclosures |
Weather exposure & vandalism |
Brass construction with dust shutters and clutch function |
Manufacturing, Materials & Quality Verification
Manufacturing execution relies on controlled metallurgy, precision CNC machining, and rigorous lot testing.
Material Composition: Raw forged brass bars undergo spectral analysis to verify copper-zinc ratios (~ 58% to 60% Copper), preventing micro-cracks during high-pressure extrusion.
Machining Precision: Rotor and stator tolerances are maintained within +/- 0.01 mm using multi-axis CNC lathes to ensure smooth pin alignment and prevent key jamming.
Hardening Process: Anti-drill pins undergo vacuum heat treatment, achieving a surface hardness exceeding 60 HRC, forcing standard HSS drill bits to deflect or fracture.
Quality Inspection Protocols:
• Caliper & Air Gauge Verification: 100% dimensional check on keyway depth and plug clearance.
• Torque Testing: Rotor shear testing evaluated up to 15 Nm torsion force.
• Salt Spray Test: ASTM B117 compliance verified for 96 hours minimum without surface oxidation pitting.
Supplier Assessment Checklist for B2B Buyers
When auditing a manufacturing partner for security cylinders, verify the following baseline metrics:
Test Reports: Independent third-party lab test certificates confirming EN 1303 or equivalent grading.
Traceability: Laser-etched batch numbers on cylinder bodies for quality tracking.
Production Capacity: Monthly output capability and automated pin-loading assembly lines to guarantee delivery SLAs.
Packaging Standards: Industrial bulk packaging (10 pcs/box, 100 pcs/carton) with individual blister/box separation to prevent surface scratching during transit.
Procurement Decision & RFQ Guidelines
To secure accurate quotations and lead times, include the following parameters in your Request for Quotation (RFQ):
Profile Type & Length: (E.g., Euro Double Cylinder, 35/35 mm).
Finish Code: (E.g., Satin Nickel - SN).
Quantity: (Minimum Order Quantity: 500 pcs per specification).
Keying Requirements: (E.g., Keyed Alike in batches of 50, with 3 brass keys per cylinder).
Certifications Needed: (EN 1303 test reports required for customs clearance).
Frequently Asked Questions
Q: What prevents a standard drill bit from penetrating the cylinder core?
A: Hardened carbon steel or tungsten carbide pins (>= 60 HRC) are press-fitted inside the plug and housing face. When a drill bit contacts these pins, the material hardness causes the drill tip to slip or break before reaching the internal shear line.
Q: Are these cylinders compatible with standard European mortise locks?
A: Yes. The profile dimensions, screw-hole positioning, and cam dimensions comply strictly with DIN 18252 and EN 1303 dimensional standards for euro profile hardware.
Q: What is the standard surface finish durability rating?
A: Standard finishes undergo salt spray testing conforming to ASTM B117 standards, withstanding a minimum of 96 hours of continuous saline mist exposure without degrading the plating layer.
Q: Can cylinders be supplied with emergency function (clutch feature)?
A: Yes. Emergency function (hazard function) is available upon request, allowing the door to be unlocked from the outside even if a key is inserted and left turned on the inside.