Precision Fabrication & On-Site Mobile Welding
Certified stick, TIG, and MIG welding in our shop or directly inside your plant.
If it is made of steel and moves rock, we can build it, reinforce it, or fix it. The TSS Group provides custom metal fabrication and certified field welding tailored specifically for heavy aggregate, sand, and industrial material processing environments. Operating out of our fully equipped fabrication shop in Williamstown, New Jersey, we build custom assemblies to strict prints or field sketches, while our mobile welding trucks deliver full shop capabilities directly to your site when equipment cannot leave the pit.
- Structural steel, catwalks, platforms and ladders
- Mobile welding rigs for in-plant repair
- Stick, TIG and MIG welding
- Custom chutes, hoppers, liners and guarding
Shop fabrication
Our shop fabricates to your drawings, to our engineering package, or to a napkin sketch and a set of field measurements. Assemblies are built, fit-checked and delivered ready to set — which keeps crane time and plant downtime short.
- Support towers, headframes and structural weldments
- Custom brackets, shafts, guards and one-off parts
- Transfer chutes, hoppers and bins
- Conveyor frames, walkways, handrail and ladders
- Wear liner packages including AR plate and ceramic
Why Aggregate Producers Trust TSS Fabrication
-
Field-Verified Fitment:
Shop assemblies are built and test-fitted before shipment to minimize crane time and guarantee fast installation during plant shutdowns. -
Certified Field Safety:
All field welders are MSHA Part 46 certified and strictly adhere to hot-work permits, atmospheric monitoring, and dedicated fire watch protocols.
-
Dual-Capability Operations:
High-capacity shop fabrication combined with heavy-duty mobile field welding rigs for total project flexibility. -
Specialized Wear-Plate Expertise:
Extensive experience cutting, forming, and welding high-abrasion materials including AR400, AR500, chromium carbide, and ceramic-backed plate.
Integrated Shop & Field Execution
Whether fabricating a complex multi-deck transfer chute or repairing a fractured crusher chassis in the pit, our seamless process ensures structural integrity and minimal plant interruption.
-
Measurement & Field Drafting:
Site laser scanning or physical measuring of existing bolt patterns, flanges, and clearance limits. -
Shop Cutting & Assembly:
Precision CNC plasma cutting, plate rolling, structural fitting, and certified welding in our controlled shop environment.
-
Surface Prep & Lining:
Installation of specified wear liners (AR plate, rubber, ceramic) and protective industrial coatings. -
Mobile Delivery & Field Welding:
Staged delivery and final structural welding/tie-in executed by our mobile welding crews during planned downtime.
Core Fabrication & Welding Capabilities
| Service Area | Deliverables & Capabilities |
| Transfer Chutes & Hoppers | Custom rock boxes, dead-bed chutes, surge hoppers, flop gates, turn-heads, and heavy-plate feed boots engineered for high-impact zones. |
| Structural Steel & Access | Heavy structural support towers, conveyor trusses, catwalks, stair towers, crossover platforms, handrails, and MSHA/OSHA-compliant safety guarding. |
| Wear Liners & Hardfacing | Fabrication and field installation of AR400/500 liners, weld-in or bolted wear packages, chromium carbide overlay plates, and automated hardfacing. |
| Mobile & Repair Welding | Emergency structural crack repairs, bucket and lip rebuilds, chassis reinforcement, pipe welding, and on-site structural modifications. |
Specialized Fabrication for Abrasive Environments
Handling thousands of tons of granite, limestone, or washed sand daily destroys standard carbon steel in weeks. We build custom components utilizing advanced wear-resistant metallurgy and field-proven structural designs built to endure heavy impact and continuous abrasion.
Materials & Fabrication Standards:
-
Abrasion-Resistant Steels:
AR400, AR500, and AR600 plate for high-velocity transfer points and crusher feed hoppers. -
Composite & Ceramic Protection:
Bolt-in ceramic tile panels, rubber-backed liners, and UHMW liners for wet sand and fine aggregate applications.
-
Structural Steel:
Heavy W-beams, structural tubing, angle, and channel compliant with AWS D1.1 structural welding codes. -
Custom Guarding & Safety:
Heavy mesh and sheet metal guarding built to MSHA standards for pinch-point and tail-pulley protection.
Serving Shop & Field Needs Across the Mid-Atlantic
Our Williamstown, New Jersey fabrication facility serves as a regional hub for aggregate producers across the Mid-Atlantic and Southeast. From rapid-turnaround chute replacements to emergency on-site structural repair, our shop and mobile crews keep material handling systems moving.
Featured Fabrication Engagements:
-
Mobile Crusher Chassis Repair:
Dispatched a mobile welding rig to repair and structurally reinforce a stress-fractured mobile jaw crusher frame in a working quarry.
-
Custom Drop-In Transfer Chute:
Fabricated a 1/2" AR400 lined transfer chute with integrated dead-beds, shipped pre-assembled for a 12-hour outage install.
-
Screen Tower Walkway Replacement:
Engineered, shop-fabricated, and field-erected 120 linear feet of heavy-duty elevated catwalk and access stairs.
On-site and emergency welding
Mobile welding trucks handle cracked structures, burned-through chutes, worn liners and structural reinforcement without pulling equipment out of the circuit. Field welders are MSHA trained and work to hot-work permits and fire watch procedures on every job.
Frequently asked QUESTIONS
Can TSS fabricate replacement chutes and structural parts without original manufacturer drawings?
Yes. We regularly fabricate custom assemblies using field measurements, 3D laser scans, or hand sketches taken directly from your plant equipment. Our team verifies critical mounting dimensions to ensure new components drop directly into place without modification.
What specialized wear-resistant materials can your shop process and weld?
Our shop and field welders are experienced in working with high-carbon and alloy wear steels, including AR400, AR500, AR600, and chromium carbide overlay (CCO), utilizing specialized pre-heat, post-heat, and filler wire protocols to prevent structural cracking.
How do your mobile welding trucks handle hot-work safety compliance on site?
Every TSS mobile welding rig comes fully equipped for full site safety compliance. Our MSHA-certified welders issue formal Hot Work Permits, maintain active fire watch protocols during and after welding operations, and carry dedicated gas monitoring equipment for safe operation in aggregate plants.
What types of welding processes do your shop and field crews perform?
We perform certified Stick (SMAW), MIG (GMAW/FCAW), and TIG (GTAW) welding. We utilize flux-cored wire and heavy stick welding for structural field repairs, while utilizing precision MIG and TIG for shop assemblies, aluminum guarding, and stainless steel applications.
Where is your fabrication shop located, and how far do your mobile rigs travel?
Our primary fabrication facility is located in Williamstown, New Jersey. From this hub, our shop delivers pre-fabricated steel across the Eastern United States, while our mobile welding rigs provide rapid-dispatch field repairs throughout the Mid-Atlantic and Southeast regions.
