7×7 Cylinder with Knob, Magnetic Pin, and Dimple Key

Technical Specifications

Parameter	Specification Details
Model Type	7×7 Cylinder with Knob and Magnetic Pin (Thumbturn Cylinder)
Profile Dimensions	Length: 78 mm (Profile: 32.85 x 16.85 x 9.85 mm)
Housing / Plug Material	Solid Brass / Solid Brass
Knob Material & Style	Solid Brass, K8 Style
Knob Structure	Detachable Knob Structure
Pin Mechanism	7 Key Pins + 1 Magnetic Pin + 7 Driver Pins
Pin Dimensions	Diameter: Φ2.5 mm
Pin Lengths	5.3 / 5.7 / 6.1 / 6.5 / 6.9 / 7.3 mm
Pin Step	0.4 mm
Hole Diameters	Key Pin Hole: Φ2.6 mm / Driver Pin Hole: Φ2.7 mm
Standard Finish	Pearl Nickel
Key Type	Dimple Key / Computer Key (Magnetic coding)
Key Quantity & Style	5 Keys, H11 Plastic Head
Key Material	Nickel Silver or Full Brass (Selectable)
Cam / Clutch Material	Powder Metallurgy Iron-based
Cam Style	10-Teeth Gear (Selectable)
Durability	100,000 Cycles
Certification	Certified according to EN 1303 standard
Mounting Hardware	M5x80 Installation Screw

Core Configurations & Applications

Hardware Specifications

• 7+1 Magnetic Pin Architecture: Features 7 active mechanical key pins and 1 magnetic pin operating against 7 driver pins. The pin step is 0.4 mm, with pin lengths of 5.3, 5.7, 6.1, 6.5, 6.9, and 7.3 mm. The driver pin hole diameter is calibrated to Φ2.7 mm.
• Detachable Brass Knob: Fitted with a solid brass K8 knob utilizing a detachable structure, enabling interior manual locking without an internal key.
• Anti-Drilling Components: Includes physical anti-drilling pins. The housing contains 1 pin per side (Φ1.5 x 15 mm), and the plug contains 1 pin per side (Φ1.5 x 4 mm).
• Anti-Picking Components: Equipped with spool pins.
• Clutch and Gear Mechanism: Incorporates a powder metallurgy iron-based clutch and an optional 10-teeth gear.
• Magnetic Dimple Keys: Supplied with 5 dimple keys featuring an H11 plastic head, selectable in nickel silver or full brass, with embedded magnetic elements corresponding to the internal magnetic pin.

Primary Application Environments

• Residential Entry Doors: Provides dual-element exterior key verification (mechanical + magnetic) combined with keyless interior thumbturn exit and locking.
• Commercial Offices & Suites: Suitable for executive offices, conference rooms, and interior partitions requiring internal thumbturn access.
• Institutional Facilities: Compatible with Master Key Systems for structured access control across multi-room commercial buildings.

Optional Configurations & Key Systems

Optional Hardware Features

Based on specific project requirements, the following features can be added:

• Anti-Bumping: Optional internal pin configuration.
• Anti-Snap (Sacrificial Cut): Optional grooved design specifying breaking points.
• Anti-Breaking: Optional reinforced structural additions.
• Double-Entry Function: Optional mechanism allowing external key operation under specific conditions.

Keying Platforms

• Keyed Different (KD): Each lock cylinder operates with an independent set of keys.
• Keyed Alike (KA): Multiple cylinders operate with a single key.
• Master Key System (MKS): Multi-tier master key configurations for facility management.

B2B Procurement & Export Terms

• Minimum Order Quantity (MOQ): Please consult our commercial department for specific finish, length, and upgrade combinations.
• Production Lead Time: Dependent on order volume and master keying specifications (typically 30 to 45 days).
• Samples: Physical cylinder prototypes are available for fitment testing and evaluation.
• Incoterms & Shipping: FOB Ningbo, Shanghai, or Tianjin. Packaged in standard industrial cartons.
• Technical Data: 2D and 3D CAD files are available for OEM partners to assist with lockcase integration.

Manufacturing Information

Beijing Oupuoptic Instrument Co., Ltd. was founded in Tongzhou District, Beijing, in 2001. In 2019, the company expanded operations by establishing Zhejiang Guocheng Technology Co., Ltd. in Zhejiang province, which includes a dedicated lock cylinder manufacturing facility.

• Manufacturing Facility: A 5,000-square-meter facility equipped for lock cylinder and hardware production.
• Workforce: Supported by a dedicated team of over 100 professionals.
• Quality System: Operations are conducted under the ISO9001 international quality system certification.
• Product Focus: The lock factory specializes in independent research, product design, and the precision manufacturing of European and American standard lock cylinders.

Frequently Asked Questions