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Product Information

Euro Profile Thumb Turn Cylinder | DIN18252/EN 1303 Certified

Euro Profile Thumb Turn Cylinder

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Function

Thumb‑Turn Function: Operated by key from outer side; inner thumb‑turn knob enables lock and unlock without key for quick indoor operation.

Structure

Hardened steel pin tumblers: Superior quality material increasing the life of locking system.
Locking Cam: Activated by outer key or inner thumb‑turn knob.
Hardened steel core pins, chemically nickel plated: Protection against methods of manipulation.
Revision pins: Control points for key authorisation.
Springs: Element in the pin tumblers designed to move the pins into the correct position.
Body drilling protection rod: Anti‑drill security component.

Material

Solid brass body, Top and bottom pins made of solid brass.

Cam

Sintered Steel, 30 Degree Angle offset cam inhibits knock through.

Thumb‑Turn(Knob)

Ergonomic thumb‑turn knob fitted on the inner end of cylinder.

Smooth rotary action for fast lock-unlock operation indoors
Outer side remains key‑operated for normal access
Full records kept for replacements and future extensions
Supplied with five 2.8mm dimple keys

Key

Outer key operated side of euro cylinder, dimple key profile for high security, five keys supplied as standard.

Surface Finish Label

Satin Nickel Plated (SNP)

Satin Nickel Plated finish offers a smooth, low‑sheen metallic appearance that is both modern and durable, resistant to fingerprints and corrosion, ideal for contemporary architectural styles.

Chrome Plate (CP)

Chrome Plate finish provides a bright, highly reflective surface that adds a touch of elegance and sophistication to any door hardware, known for its excellent durability and resistance to tarnishing.

Matt Black (MB)

Matt Black finish delivers a sleek, modern aesthetic with a non‑reflective surface, perfect for minimalist and industrial design schemes, offering excellent scratch resistance and a contemporary look.

Antique Bronze (AB)

Antique Bronze finish features a warm, aged patina that adds character and timeless elegance, ideal for traditional and heritage‑style properties, providing a classic yet durable finish.

Polished Brass (PB)

Polished Brass finish offers a rich, warm golden glow with a highly reflective surface, adding a touch of luxury and classic beauty to any door, known for its timeless appeal and durability.

Satin Brass (SB)

Satin Brass finish provides a softer, more muted golden appearance compared to polished brass, offering a sophisticated and understated look that complements a wide range of interior and exterior designs.

Cylinder Knob Style Selection

Knob‑Style‑01 | Classic Round Thumb‑Turn

Classic round ergonomic knob design. Smooth circular profile delivers comfortable thumb operation, widely‑compatible standard shape suitable for most residential and commercial door projects.

Round symmetrical silhouette
Universal fitting dimension
Traditional‑style hardware matching

Knob‑Style‑02 | Flat Oval Thumb‑Turn

Low‑profile oval shaped thumb‑turn. Slim flattened form reduces protruding height from door surface, modern streamlined look for contemporary interior door hardware.

Oval slim low‑profile shape
Minimal protruding dimension
Modern minimalist aesthetic

Knob‑Style‑03 | T‑Bar Lever Thumb‑Turn

Horizontal T‑bar thumb‑turn shape. Extended lever arm creates greater torque leverage, ideal for users requiring easier turning force, heavy‑use public‑area door solution.

Horizontal T‑shaped grip arm
High‑leverage easy‑turn operation
Recommended for high‑traffic doors

Knob‑Style‑04 | Wing‑Shape Thumb‑Turn

Symmetrical dual‑wing thumb‑turn design. Two‑sided gripping surface offers quick‑grip positioning, decorative sculpted profile for premium‑grade residential door hardware.

Dual‑wing decorative silhouette
Dual‑sided thumb gripping zones
Premium decorative appearance

Knob‑Style‑05 | Square‑End Thumb‑Turn

Sharp square‑ended thumb‑turn knob. Geometric angular profile, perfect match for square‑series lever handles and modern geometric door furniture collections.

Square angular geometric shape
Matches square‑profile handle sets
Modern architectural hard‑edge styling

Knob‑Style‑06 | Curved Ergonomic Thumb‑Turn

Contoured curved ergonomic thumb‑turn. Sculpted concave surface naturally cups your thumb, ultra‑comfortable rotation experience for frequent daily‑use household doors.

Contoured concave curved grip surface
Thumb‑cupping ergonomic shape
Maximum comfort for repeated operation

Art No.&Line Draw.

Art No.: CTT1‑60

Technical drawing and specifications for model CTT1‑60 Euro Profile Thumb Turn Cylinder. This model is designed for standard door thickness applications, providing reliable security and easy installation.

Art No.: CTT1‑70

Technical drawing and specifications for model CTT1‑70 Euro Profile Thumb Turn Cylinder. This model offers extended backset for thicker doors, ensuring secure fit and operation.

Art No.: CTT1‑80

Technical drawing and specifications for model CTT1‑80 Euro Profile Thumb Turn Cylinder. Designed for heavy‑duty applications with enhanced security features and robust construction.

Art No.: CTT1‑90

Technical drawing and specifications for model CTT1‑90 Euro Profile Thumb Turn Cylinder. Standard long‑size cylinder for thick‑door installation, with multiple interchangeable thumb‑turn knob styles.

Compliance with DIN18252/EN1303,Durability 100,000 Test Cycles. EN160B0C40

Application Scenarios

Residential Main Doors

Perfect for household entrance doors, enabling quick‑lock from inside with thumb‑turn knob, convenient for night‑time safety locking.

Office & Apartment Doors

Suitable for private offices, apartment interior doors, where fast indoor locking operation is required without using a key.

Hospitality & Access Control

Ideal for hotel room inner‑lock function, residential safety‑lock systems and high‑traffic indoor doors requiring thumb‑turn operation.

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