Door Cylinders

Precision Security for Every Entry.

Doric’s door cylinders are the heart of secure door systems — engineered for strength, smooth operation, and long-term reliability. From residential entrances to commercial facilities, each Doric cylinder is crafted to deliver consistent key control and dependable locking performance. Built for Australia’s standards and conditions, our range includes euro profile cylinder locks, oval cylinder locks, and thumb turn options that combine practicality with high-grade security.

Why Choose Doric Door Cylinders

As Australia’s trusted commercial door hardware supplier, Doric has been designing and manufacturing precision hardware for decades. Our door cylinder locks are used nationwide in residential, architectural, and commercial projects — trusted by builders, locksmiths, and facility managers for their proven strength and compliance.

Why Doric cylinders stand apart:

• AS/NZS compliant security cylinders – tested for performance, endurance, and tamper resistance.
• Rekeyable cylinders and lock barrels – maintain control across properties and tenancies.
• Anti-pick and anti-drill protection – reinforced cores that deter forced entry.
• C4 keyway Australia compatible – secure, universal keying across Doric and industry-standard systems.
• Keyed alike cylinder options – streamline access management across multiple doors.
• Available in 5 pin and 6 pin door cylinders – flexibility for general or high-security applications.

Types of Door Cylinders

Euro Profile Cylinder Lock

The euro profile cylinder lock is one of the most versatile and secure configurations used in Australian door systems. Doric’s euro cylinders are engineered with hardened inserts, smooth key rotation, and compatibility with hinged door locks.

Available variants:

• Double cylinder – keyed both sides for maximum security.
• Single cylinder – keyed externally with fixed internal operation.
• Thumb turn cylinder lock – key outside, turn knob inside for safe egress and convenience.

Oval Cylinder Lock Australia

Doric’s oval cylinder locks combine precision design with robust construction for commercial and institutional use. Each lock features solid brass bodies, stainless components, and smooth key indexing for consistent operation in high-traffic environments.

Best for:

• Commercial buildings and schools.
• Strata and apartment entry systems.
• Industrial doors needing long-wear reliability.

All oval cylinders integrate seamlessly with entrance handles and door bolts for a complete access solution.

Double and Single Cylinder Locks

When flexibility is key, Doric’s double and single cylinder locks deliver adaptable access control. Double cylinders allow locking from both sides — ideal for external doors — while single cylinders simplify operation in low-risk areas.

Each option can be configured to suit:

• Master key systems.
• Restricted key cylinder systems.
• Custom backset and length profiles.

Keyed Alike Cylinder and Restricted Key Systems

Control access with precision. Doric’s keyed alike cylinder and restricted key cylinder systems are designed for scalable key management — whether across a single property or multi-building complex.

Features include:

• Restricted keyways for key control.
• Keyed-alike suites for ease of access.
• Registered key duplication protocols for compliance and security integrity.

Thumb Turn Cylinder Lock

The thumb turn cylinder lock offers quick and simple internal locking, ideal for apartments, offices, or fire-rated doors where keyless egress is essential. Built with smooth-turn ergonomics and anti-slip grip, it ensures safety and convenience in daily use.

Product Spotlight

DS155 5-Pin Cylinder Set (C4 Broach)

A robust 5 pin door cylinder precision-engineered to match Doric’s full range of hinged and sliding locks.

• Keyway: C4, compatible across most Australian keying systems.
• Body: Solid brass with nickel-plated finish.
• Features: Rekeyable core, anti-pick pins, and smooth key engagement.
• Best for: Residential and commercial use requiring consistent performance and local key compatibility.

EPEC Electronic Pin Euro Cylinder (62mm)

The EPEC Electronic Euro Cylinder merges mechanical reliability with electronic access innovation.

• Operation: Digital key or card-based entry with audit functionality.
• Build: Hardened steel body, high-torque motor, and tamper detection.
• Integration: Compatible with Doric’s euro profile locks and access control systems.
• Best for: High-security commercial sites seeking hybrid mechanical-electronic solutions.

Technical Specifications

Doric supplies door cylinders in multiple lengths and configurations to suit both new installations and replacements:

• Standard lengths: 60mm, 70mm, 80mm, and 100mm.
• Pin options: 5 pin and 6 pin variations for custom security levels.
• Key systems: C4 keyway, restricted key systems, and master-keyable setups.
• Finishes: Satin chrome, polished brass, matte black, and custom finishes on request.

Each cylinder is precision-machined for smooth engagement and longevity, ensuring proper alignment across sliding door locks and hinged door locks.

Compliance & Testing

Doric’s door cylinders are tested under Australian and international standards to ensure durability, resistance, and mechanical accuracy.

Compliance highlights:

• AS/NZS 4145.2 – mechanical performance and endurance testing.
• AS/NZS 1909 – corrosion resistance under environmental exposure.
• Cycle testing: Over 200,000 key turns without degradation.
• Torque testing: Measures resistance under forced rotation.
• Drill and pick testing: Certified anti-pick and anti-drill components in select models.

Every Doric cylinder is subject to internal and third-party testing to ensure compliance and long-term reliability in both residential and commercial environments.

Applications

Doric cylinders provide secure key control across a wide range of installations:

• Residential doors – keyed-alike systems for ease of use.
• Commercial buildings – master-keyed access and restricted key security.
• Apartments and strata complexes – thumb turn and euro cylinder convenience.
• Industrial facilities – heavy-duty oval cylinder locks for high-traffic entries.

Whether you’re securing a new build or upgrading existing doors, Doric provides replacement door cylinder cores and rekeyable solutions that align with Australian hardware standards.

Compatibility and Complementary Hardware

Doric door cylinders integrate seamlessly across its full locking hardware ecosystem:

• Door Locks – complete locking systems for hinged and sliding doors.
• Hinged Door Locks – precision entry solutions for single and double doors.
• Sliding Door Locks – compatible euro and oval profiles for smooth performance.
• Entrance Handles – match finishes for consistent visual appeal.
• Door Bolts – additional security for fixed or active leaf doors.

Together, these products form an integrated, secure access solution — combining mechanical precision with aesthetic continuity.

Maintenance and Replacement

To ensure optimal performance:

• Clean keyways and external surfaces with a soft brush or dry cloth.
• Lubricate cylinders every 12 months using a non-greasy graphite powder.
• Inspect for debris or worn pins if key action feels rough.
• Rekey as needed for tenancy changes or key control upgrades.

Doric provides rekeyable cylinders and lock barrels, ensuring easy maintenance and lifecycle management across properties.

Frequently Asked Questions

Can I buy door cylinder locks online?

Yes. You can buy door cylinder locks online through Doric’s authorised distributors across Australia.

What’s the difference between a euro and oval cylinder lock?

Euro cylinders are common in residential and light commercial use, while oval cylinders are standard in heavy-duty or commercial door hardware.

Are Doric cylinders rekeyable?

Yes. Doric offers rekeyable cylinders that allow key changes without replacing the full lockset.

Do Doric cylinders meet Australian Standards?

Absolutely. All models are AS/NZS compliant security cylinders, tested for durability, torque resistance, and tamper protection.

Can I install these myself?

Most Doric cylinders are compatible with existing lock housings and can be fitted by qualified installers or locksmiths with standard tools.

Secure Every Door with Doric

Doric’s door cylinders deliver precise engineering, enduring strength, and total key control. Whether you’re after a euro profile cylinder lock, an oval cylinder lock, or a restricted key system, Doric provides hardware designed for Australian conditions and compliance.

• Shop Doric door cylinders – engineered for strength, precision, and longevity.
• Get expert guidance – our specialists can help you select the right cylinder for your project.
• Call 1300 132 389 – speak directly with a Doric hardware expert today.

Trusted by professionals nationwide, Doric provides AS/NZS compliant door cylinders built to secure the spaces where Australians live, work, and build.