CraneVeyor 4036/Z-Series Crane
CraneVeyor manufactures a complete range of underhung cranes with structural beam girders. The cranes are available from ¼ ton push/pull type to 20 tons capacity long span, multiple runway type. We manufacture our end trucks and have CNC machinery to turn wheels and mill assemblies, and efficient jigs to align the assemblies. You’re buying these hard working, cost effective cranes from a manufacturer with over 64 years of know-how.
Underhung Crane
CraneVeyor offers Underhung Overhead Cranes, including the 4036 Series (up to 3 tons, 30' span) and Z Series (1–15 tons, up to 60'+ spans). Z Series cranes feature flangeless wheels and friction tire drives for durability and smooth operation.
Additionally, Double Girder and Multiple Runway Cranes provide higher capacities (up to 30 tons) and low headroom for long-span applications.
Underhung Crane Models
Four series designed for space-saving underhung applications
4036
1/4 to 3 Ton
- Max Span Up to 30'
- Wheel Diameter 4.5"
- Standard Speed 60 or 90 FPM
- Rail Options I-Beam or W-Beam
- Best For Light Manufacturing
Z-6
Up to 3 Ton
- Max Span Up to 60'
- Wheel Diameter 4" & 8"
- Standard Speed 60 or 90 FPM
- Rail Options I-Beam or WF Beam
- Best For Light Manufacturing
Z-10
Up to 5 Ton
- Max Span Up to 60'
- Wheel Diameter 5" & 9"
- Standard Speed 67 or 90 FPM
- Rail Options I-Beam or WF Beam
- Best For Heavy Manufacturing
Z-20
Up to 10 Ton
- Max Span Up to 60'
- Wheel Diameter 5.75" & 9"
- Standard Speed 67 or 90 FPM
- Rail Options I-Beam or WF Beam
- Best For Heavy Manufacturing
Z-30
Up to 15 Ton
- Max Span Up to 48'
- Wheel Diameter 6.5" & 9"
- Standard Speed 67 or 90 FPM
- Rail Options I-Beam or WF Beam
- Best For Industrial Operations
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Universal Features Across All Underhung Series Models
Engineering excellence in every component
Structural Design
Girders: Wide flange WF beams with reinforcement as required. Maximum deflection 1/600 following CMAA 74 guidelines.
End Truck Bracing: Horizontal knee braces and end truck to girder bracing provided for enhanced rigidity.
Flangeless Wheel System
Material: C-1040 steel, hardened to 400-450 BHN with sealed lifetime lubricated ball bearings.
Design: Wide tread flangeless wheels run close to runway beam web to reduce lower flange bending stresses.
Versatility: Wheels operate on I-beams or WF beams without exchanging parts.
Split Truck Design
Easy Installation: Unique split truck design allows simple installation without major structural modifications.
Fixed Axle Type: End trucks accommodate various flange widths with machine bored bearing/axle alignment.
Safety Features: Rubber bumpers, safety lugs, and guide rollers included.
Friction Tire Drives
Drive Wheels: Rubber tire with traction surface for positive and quiet operation.
Configuration: Drive wheels keyed to stub shafts, supported by adjustable spring-loaded precision ball bearing units.
Dual Drives: Provided on longer span cranes for optimal performance.
Worm Gear Reducers
Type: Hollow shaft worm gear reducers keyed to shaft and torque arm mounted.
Non-Coasting: Worm gearing provides non-free coasting braking for enhanced safety.
Lubrication: Oil bath enclosed with no exposed gearing for maintenance-free operation.
Premium Motor Specifications
Type: Squirrel cage induction, TEFC, continuous duty, NEMA Design B, low slip.
Inverter Ready: Suitable for variable frequency drive operation.
Temperature Range: -5°F to +40°F with Class B insulation; special motors available for extreme conditions.
Advanced Speed & Control
Drive Technology: Adjustable frequency drive (AFD) with dynamic braking and motor overload protection.
Control Modes: Single speed, 2-speed, or 2-step infinitely variable control.
Programmable: Adjustable acceleration/deceleration and advanced AFD features.
Complete Electrical Package
Control Enclosure: NEMA 3R rated with magnetic mainline contactor and branch fusing.
Standard Power: 208/230/460V, 3-phase, 60Hz with 115V control transformer.
Conductors: Festooned flat cable with trolleys on C track for motorized cranes; tagline type for hand geared.
Comprehensive Safety Features
Manual disconnect between runway conductors and controls (fused for multiple cranes), rubber bumpers, safety lugs, guide rollers, dynamic braking, and CMAA 74 compliant design standards.
Professional Finish
Blast cleaned steel structure with quality primer coat application and durable safety yellow finish top coat. Other painting systems available on application.
Control Options
Independent traveling C track/flat cable pendant system, radio remote control, and push button control from hoist/trolley when ordered complete with hoist.
Specialized Configurations
Air operation capability, spark proof design for sensitive environments, hazardous or corrosive environment configurations, and special insulation for high temperature areas.
Why Choose Underhung Cranes?
Space-saving design with powerful performance
CMAA 74 Compliant
Fully engineered to meet CMAA Specification No. 74 for Class A through C service applications with reliable performance.
Space-Saving Design
Underhung configuration maximizes floor space and headroom utilization while maintaining full lifting capability.
Low Maintenance
Sealed lifetime lubricated bearings and enclosed worm gearing minimize routine maintenance requirements.
Flangeless Wheels
Wide tread flangeless wheels reduce flange bending stress and operate smoothly on I-beams or WF beams.
Split Truck Design
Unique split truck design allows for simple and easy installation without major structural modifications.
Advanced Controls
Adjustable frequency drives with programmable acceleration/deceleration and dynamic braking for smooth operation.
Downloads
Technical specifications and brochures