MZ108-1 PA (Nylon) Black IP54 Quarter-Turn T-Knob Industrial Cabinet Lock with Zinc Alloy Keyed Lock Core

Full Technical Specifications

• Model Number: MZ108-1
• Housing and Handle Material: PA (polyamide / nylon) engineering plastic — black
• Lock Core Material: Zinc alloy (keyed)
• Shaft and Cam Material: Steel, white zinc plated
• Surface Finish: Black PA housing and handle; white zinc plated shaft and cam
• Protection Rating: IP54 (dust-protected, splash water resistant)
• Operation Type: Quarter-turn (90° rotation) opening or closing
• Hand Configuration: Reversible (RL — compatible with left and right hand)
• Handle Type: T-knob / wing knob, 95mm width × 45±2mm grip × 20mm height
• Housing Diameter: Φ40mm
• Shaft Type: B-type cam shaft, t=4mm
• Shaft Length: Adjustable 17.5~36.5mm range
• Overall Length: 86.5mm
• Additional Dimensions: 43.5mm, 38mm, 35mm, Φ8.5mm
• Mounting Type: 2 screw holes — 2×Φ10mm through holes, 40mm spacing, with Φ11mm center hole
• Rotation Angle: 90°
• Core Features: PA lightweight corrosion-resistant construction, zinc alloy keyed lock core, adjustable B-type shaft, IP54 protection, ergonomic T-knob, compact design, quarter-turn 90° operation, left/right hand reversible, chemical resistant, electrically insulating, self-lubricating

Core Product Features & Advantages

1 High-Quality PA (Nylon) Construction for Lightweight Corrosion Resistance

The housing and T-knob handle are manufactured from PA (polyamide/nylon) engineering plastic, providing excellent corrosion resistance, chemical resistance, electrical insulation and self-lubricating properties. The black PA material is inherently resistant to rust, oxidation and most industrial chemicals, making it ideal for outdoor, chemical processing and harsh environment applications where metal locks would corrode or degrade. The lightweight construction also reduces overall equipment weight.

2 Zinc Alloy Keyed Lock Core for Robust Security

The lock core is fabricated from high-pressure die-cast zinc alloy, providing robust keyed security and reliable tamper resistance. The zinc alloy core ensures precise key engagement and long-term durability, while the integrated design creates a clean, unified appearance on the T-knob face. The keyed mechanism restricts unauthorized access to cabinet interiors, making it suitable for secure equipment enclosures.

3 Ergonomic T-Knob Design for Comfortable Operation

The ergonomic T-knob / wing knob design (95mm width, 45±2mm grip) provides a comfortable, balanced two-finger grip that enables easy quarter-turn operation even when wearing work gloves. The compact T-knob shape offers sufficient leverage for smooth latching and unlatching while maintaining a low-profile, space-saving footprint on the cabinet door. The clean, minimalist design contributes to a modern, professional appearance.

4 Adjustable B-Type Shaft for Various Panel Thicknesses

The B-type cam shaft (t=4mm) features an adjustable length range of 17.5~36.5mm, accommodating a wide variety of panel thicknesses and cam configurations. The white zinc plated steel shaft provides corrosion protection and structural strength, while the B-type flat ensures positive, slip-free cam engagement for reliable latching. The adjustability eliminates the need for multiple shaft length variants, simplifying procurement and inventory management.

5 IP54 Protection for Indoor Industrial Environments

The IP54 protection rating ensures the lock is dust-protected and resistant to splash water from any direction, making it suitable for indoor industrial environments including factories, workshops and equipment rooms where dust and occasional moisture exposure may occur. The robust PA construction and sealing provide reliable performance in standard industrial conditions.

6 Two-Screw Mounting with Left/Right Reversibility

The 2×Φ10 screw mounting (40mm spacing, Φ11 center hole) ensures straightforward, stable panel installation without requiring special cutout tools. The screw fixation prevents the lock housing from rotating during quarter-turn operation, providing a secure, vibration-resistant connection. The left/right hand reversibility (RL) reduces inventory requirements and simplifies procurement for projects with mixed door swing directions.

Application Fields

1. Electrical control cabinets, low-voltage distribution boxes, frequency converter enclosures and PLC equipment housings requiring keyed quarter-turn locking
2. CNC machine tool guards, automation equipment protective doors and industrial machinery access panels
3. Communication equipment cabinets, server boxes and signal transfer enclosures
4. Chemical processing equipment, laboratory analytical instruments and environmental monitoring control boxes (PA chemical resistance)
5. Outdoor monitoring equipment, weather-resistant instrument panels and coastal equipment enclosures (PA corrosion resistance)
6. Agricultural machinery, farm equipment access panels and outdoor industrial enclosures
7. Sheet metal tool cabinets, industrial console doors and storage enclosures
8. Electronic equipment casings, consumer electronics and IoT device enclosures requiring electrically insulating locks
9. Transportation equipment, vehicle access panels and vibration-prone applications
10. Applications requiring lightweight, corrosion-resistant, chemically resistant and compact keyed quarter-turn locking hardware

Installation & Maintenance Guidelines

Step-by-Step Installation Procedures

1. Determine the door hand configuration (left or right) — the lock is reversible for both
2. Determine the installation position on the cabinet door panel according to the dimension drawing
3. Mark and drill 2×Φ10mm mounting holes at 40mm spacing, and a Φ11mm center hole for the shaft
4. Ensure the sealing gasket is properly positioned on the lock housing flange
5. Insert the adjustable B-type shaft through the Φ11mm center hole from the front of the door panel
6. Secure the lock housing to the panel using 2×M8 screws through the Φ10mm mounting holes
7. Adjust the shaft length within the 17.5~36.5mm range to match the specific panel thickness and cam configuration
8. Install the appropriate B-type cam (t=4mm) on the shaft, aligning the flat for positive engagement
9. Test the 90° quarter-turn operation to verify smooth locking and unlocking
10. Verify the zinc alloy lock core operates correctly with the provided key
11. Confirm the T-knob orientation matches the door hand configuration (left or right)
12. Adjust the cam position or shaft length if needed to achieve proper door latching and consistent gap spacing

Installation Quantity Recommendation

• Standard single cabinet door: Install 1 quarter-turn T-knob lock centered vertically on the door
• Tall or wide doors (>1200mm height): Install 2 locks (top and bottom) or 1 lock with additional hinge support
• Note: Ensure the B-type cam is properly sized for the specific cabinet door-frame configuration to achieve secure latching

Maintenance Instructions

1. Suitable for indoor industrial environments with IP54 protection; PA material offers good corrosion and chemical resistance, but avoid prolonged exposure to extreme high temperatures (above 80°C continuously) as PA may soften
2. Wipe the black PA T-knob and housing periodically with a soft dry or slightly damp cloth to remove dust and grease; avoid harsh chemical solvents that may damage the nylon material
3. Apply a small amount of graphite or dry lubricant to the zinc alloy lock core annually to maintain smooth key operation; avoid oil-based lubricants that may attract dust
4. Check the 2 mounting screw tightness quarterly to prevent loosening from vibration
5. Inspect the PA housing and T-knob annually for any signs of cracking, deformation, UV degradation or excessive wear; replace the lock if any damage is detected
6. For prolonged direct outdoor UV exposure, inspect more frequently as PA may experience gradual UV degradation over time
7. Inspect the white zinc plated shaft and cam annually for any signs of corrosion or wear
8. Test the 90° quarter-turn operation quarterly to verify smooth locking and unlocking; the PA material is self-lubricating but the shaft may benefit from occasional dry lubricant
9. Verify that the cam remains securely attached to the B-type shaft and provides consistent latching force
10. For adjustable shaft length, periodically verify the shaft setting has not shifted and cam engagement remains proper

Product Summary

MZ108-1 is a compact quarter-turn T-knob industrial cabinet lock manufactured from high-quality PA (nylon/polyamide) engineering plastic with a zinc alloy keyed lock core and durable white zinc plated steel shaft and cam. Its PA construction provides lightweight corrosion resistance, chemical resistance and electrical insulation, the zinc alloy lock core ensures robust keyed security, the ergonomic T-knob (95mm width) enables comfortable gloved operation, the adjustable B-type shaft (17.5~36.5mm, t=4mm) accommodates various panel thicknesses, the IP54 rating ensures reliable dust and splash protection for indoor environments, the 2-screw mounting provides straightforward stable installation, and the left/right hand reversibility offers flexible configuration. With its compact design, robust performance and versatile material properties, it is an ideal locking solution for electrical cabinets, distribution boxes, machinery enclosures, communication equipment, chemical processing enclosures, outdoor equipment and various industrial applications requiring lightweight, corrosion-resistant compact keyed quarter-turn locking hardware.