Excel Loading Systems TLB-374
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The TLB-374 Boom Top Loading Arm is an unsupported boom-style top loading system designed for efficient loading and unloading of tank trucks and railcars. It is engineered for extended reach applications where flexibility and positioning accuracy are critical during product transfer operations.

SafeRack supplies and supports Excel Loading Systems TLB-374 with expert specification guidance from Regional Area Managers who help you select the right configuration, materials, and end fitting for your terminal. Our team provides assistance with system compatibility, installation requirements, and operational performance to ensure safe and efficient loading operations. Get technical support, lead times, and pricing information in one call.
Excel Loading Systems TLB-374
Overview
The TLB-374 Boom Top Loading Arm is an extended reach loading solution designed to improve flexibility in demanding loading environments. It includes an additional pipe section and a swivel arrangement that provide enhanced movement and positioning capabilities compared to standard fixed arms.
The system features a spring-balanced design combined with multiple swivel joints, allowing smooth operation in both vertical and horizontal directions. An additional end swivel ensures the drop tube remains properly aligned during loading operations.
Key Features
- Unsupported boom top loading arm design
- Extended reach configuration for flexible loading
- Additional pipe section for increased operational range
- Multiple swivel joints for smooth movement
- Spring-balanced operation for reduced operator effort
- End swivel maintains vertical drop tube alignment
- Suitable for truck and railcar loading applications
- Available in multiple configurations (right-hand, left-hand, up-feed, down-feed)
- Horizontal feed options available
- Designed for multi-compartment loading operations
- Heavy-duty industrial construction for durability
- Supports vapor recovery and safety accessories (optional)
TLB-374 Boom Top Loading Arm Specifications
| Specification | Detail |
|---|---|
| Model | TLB-374 |
| Type | Unsupported Boom Top Loading Arm |
| Application | Truck & Railcar Loading |
| Configuration Options | Right Hand / Left Hand / Up Feed / Down Feed / Horizontal Feed |
| Design Type | Spring Balanced Boom Arm |
| Reach Type | Extended Reach |
| Drop Tube Control | Vertical alignment via end swivel |
| Material Options | Carbon Steel, Low Temp Carbon Steel, Stainless Steel, Aluminum |
| Specialty Materials | Alloy 20, Hastelloy |
| Operation | Manual balanced loading system |
| Use Case | Multi-compartment and variable spotting loading |
Source: TLB-374 Boom Top Loading Arm
Materials of construction
| Component | Material |
|---|---|
| Arm Structure | Carbon Steel/Low Temperature Carbon Steel/Stainless Steel/Aluminum |
| Specialty Alloys | Alloy 20/Hastelloy |
| Swivel Components | Industrial Grade Steel / Alloy |
| Coating | Heavy Duty Industrial Protective Finish |
| Drop Tube | Steel or Stainless Steel |
TLB-374 Boom Top Loading Arm Frequently Asked Questions
The TLB-374 is used for loading and unloading liquids and other products into tank trucks and railcars. It is designed for facilities that require extended reach and flexible positioning during loading operations, especially where vehicle placement is inconsistent.
Unlike standard arms, the TLB-374 includes an additional pipe section and multiple swivel joints that significantly increase its reach and flexibility. This allows it to handle more complex loading scenarios with better control and reduced operator effort.
Yes, the TLB-374 is well-suited for multi-compartment loading applications. Its extended reach and flexible movement make it easier to access different compartments without requiring precise vehicle repositioning.
The TLB-374 can be manufactured in carbon steel, low temperature carbon steel, stainless steel, and aluminum. Specialty alloys such as Alloy 20 and Hastelloy are also available for more demanding applications.
It is commonly used in petroleum terminals, chemical processing facilities, and industrial loading stations where safe, flexible, and efficient liquid transfer is required for trucks and railcars.
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