Excel Loading Arm Systems
Complete System Design & Integrations for Safer, More Efficient Bulk Fluid Transfer
SafeRack supplies Excel loading arms, swivel joints, and components — 100% made in the USA
SafeRack supplies and installs Excel Loading Systems’ full line of top and bottom loading arms, XL-1.0 swivel joints, API couplers, and spring cylinders — then integrates them with the gangways, safety cages, and fall protection that make the whole loading rack OSHA-compliant. One partner, one accountable solution.
Excel brings 25+ years of liquid-handling engineering with all standard swivels, elbows, pipes, and spring components manufactured in the USA — ISO certified and ASME coded. Paired with SafeRack’s hands-on RAM (Regional Area Manager) network, you get the right arm specified for your product, flow rate, and vehicle — delivered fast, on budget.
Excel Loading Arm Systems
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Why buy Excel arms through SafeRack
Customer First
100% USA-made components
swivels, elbows, pipes, and springs domestically manufactured, with Material Test Reports and AML conformance for full traceability.
Complete system, one vendor
the arm plus the platform, gangway, safety cage, and grounding, engineered to work together.
On-site evaluation
a SafeRack loading arm expert walks your facility, measures reach and spotting tolerances, and specs the exact model.
Turnkey install + support
Ergonomic, durable designs reduce downtime and improve safety.
Compliance built in
systems engineered to API RP 1004 and OSHA fall-protection requirements.
Some of the Excel loading arm models we supply
Bottom loading arms
Ground-level, sealed transfer for petroleum and chemical bulk loading and unloading — safer and faster than hoses.
- AF-54 A-Frame — compact storage and clearance for multi-product truck loading.
- BL-54 / BL-50 Bottom Loaders — workhorse API bottom loaders for high-throughput terminals.
- BT-377 Bottom Transfer — long-reach transfer arm for road and rail where vehicles can’t be precisely spotted.
- BT-44 Bottom Transfer Hose Loader — hose-equipped transfer loader for added flexibility.
- CW-30 Counterweight Loader — counterweight-balanced handling for smooth, repeatable connection.
Materials available in carbon steel, carbon/stainless, and carbon/aluminum. If your application doesn’t fit a standard model, SafeRack and Excel engineer a custom solution.
Top loading arms
For transferring liquids and gases to trucks, railcars, and totes — with maximum reach, swivel flexibility, and tight-fill/closed-system compatibility.
- TL-54 Fixed Reach — straightforward top loader for consistent vehicle spotting.
- TL-544 Variable Reach — added articulation for varied tanker sizes and positions.
- TLB-374 Unsupported Boom — extra pipe section and swivel for extreme flexibility at the loading position.
- TLBS-374 Supported Boom — pillow-block inlet swivel plus a spring-balanced double swivel at the base for up/down and left/right movement; longer reach with a minimized spring section, drop tube stays vertical.
- TLBS-375BH Bullhorn Arm — supported boom bullhorn with two end swivels and a tee, keeping the drop tube vertical for long-reach rail and truck loading.
Swivel joints, couplers & components
- 1XL-1.0 Swivel Joints — high-durability, easy-maintenance swivels with hardened ball races; split-flange design means no welding to replace in line and seals accessible without removing ball bearings. Available as High Pressure and Dual Seal (XL1.0DSA) models for hazardous service.
- Swivel specs — −20°F to 400°F, 300 PSI working pressure; flanges in carbon steel, low-temp carbon, stainless, Hastelloy, or Inconel; seals in Viton GFLT, Buna, or FEP.
- API couplers — top- and bottom-loading API couplers for petrochemical and a wide range of industries.
- Excel Quick Adjust Spring Cylinder — operator-friendly spring assembly for safe, reliable balance in the field.
- Accessories — loading valves, cone deflectors, drop tubes/hoses, lockdown devices, vapor recovery, grounding/bonding, vacuum breakers, steam jackets, and pneumatic/hydraulic balance.
Top vs. bottom loading
which Excel arm?
A SafeRack RAM will confirm the right choice based on your product, throughput, and how precisely vehicles can be spotted.
| Top loading arm | Bottom loading arm | |
|---|---|---|
| Connection | Through the top hatch/dome | Ground-level flange / API coupler |
| Operator position | On a platform at the hatch | At ground level — less fall exposure |
| Best for | Rail, chemical trucks, dome fill | High-throughput truck terminals, LPG |
| Vapor recovery | Sealed fill with vapor cone | Closed-loop vapor return |
| Example models | TL-54, TL-544, TLB-374, TLBS-375BH | AF-54, BL-54, BT-377, CW-30 |
Built for safety and uptime
Excel arms replace cumbersome hoses with articulating XL-1.0 swivel joints and balanced spring or counterweight systems — reducing spills, leaks, operator strain, and downtime. SafeRack completes the picture with ErectaStep access stairs and platforms, truck/railcar safety cages, GX gangways, YellowGate self-closing gates, and Earth-Rite static grounding, so operators connect every arm safely.
Frequently Asked Questions
An Excel loading arm is a rigid, articulating mechanical arm that transfers liquids or gases between a facility and a tank truck, railcar, or tote. It uses XL-1.0 swivel joints and a spring or counterweight balance system to replace hoses, improving safety, sealing, and repeatability.
A top loading arm connects through the tanker’s top hatch; a bottom loading arm connects at ground level via a flange or API coupler. Bottom loading reduces fall exposure and supports closed-loop vapor recovery, while top loading suits rail, chemical, and dome-fill applications.
The XL-1.0 is Excel’s USA-made swivel joint with hardened ball races and a split-flange design, so swivels can be replaced in line without welding and seals are accessible without removing the ball bearings. It’s rated to 300 PSI from −20°F to 400°F and is available in high-pressure and dual-seal versions for hazardous media.
Yes. All standard swivels, elbows, pipes, and spring components are manufactured in the USA. Excel is ISO certified and ASME coded and provides Material Test Reports with AML conformance for traceability.
Yes. SafeRack provides on-site evaluation, system design, installation, in-field service, shop rebuilds, and replacement parts, and integrates the arm with OSHA-compliant gangways, safety cages, grounding, and fall protection.
Excel bottom loading arms meet API RP 1004 envelope requirements, and complete systems are engineered to OSHA fall-protection requirements when integrated with SafeRack access and safety equipment.
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