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Heavy Fabrication Pillar

On-Site Heavy Fabrication & Erection

Precision field engineering, tank erection, heavy structural assemblies, and high-pressure piping executed at your plant or project site with ASME Sec IX certified welders and ISO 9001 quality compliance.

50,000+ MT

Total Structural & Tankage Erected

ASME & IBR

Certified Welding & Quality Standards

48-Hour

Rapid Site Team Mobilization

Zero LTI

Stringent Plant HSE Safety Record

Site Execution Capabilities

Turnkey field fabrication engineered for critical industrial plants

We deploy self-contained mobile fabrication skids, qualified welding procedures (WPS/PQR), and dedicated site supervisors directly to your project location.

Storage Tank & Vessel Erection

Field assembly and full penetration welding of API 650 & API 620 storage tanks, silos, and hoppers up to 5,000 m³ capacity.

Heavy Structural Steel Erection

Erection of heavy industrial trusses, pipe racks, equipment support structures, and furnace superstructures up to 500 MT modules.

Cross-Country & Plant Process Piping

Carbon steel, alloy steel (P11, P22, P91), and austenitic stainless steel process piping under ASME B31.1 & B31.3 standards.

Shutdown & Turnaround Teams

Rapid mobilization of mobile welding skids, orbital TIG machines, and certified trade crews for planned plant turnarounds.

Why Maple

Why leading EPCs & plant owners choose Maple On-Site

Field fabrication requires exceptional safety diligence, certified welding procedures, and reliable turnaround mobilization.

01

Zero LTI Safety Record

Stringent site HSE management, daily tool-box talks, continuous gas testing, and strict permit-to-work compliance to ensure zero accidents.

02

ASME & IBR Certified Welders

Every welder deployed holds valid 6G/6GR qualifications under ASME Section IX and IBR with third-party verified Welder Qualification Records (WQR).

03

48-Hour Rapid Mobilization

Self-contained mobile welding rigs, 125-250 kVA soundproof DG sets, and certified rigging crews ready to mobilize to site within 48 hours.

04

In-House WPS & PQR Library

Proven library of over 120 qualified welding procedures covering carbon steel, alloy pipes (P11, P22, P91), stainless steel, Inconel, and duplex.

05

100% Radiographic Quality

Consistent first-time radiography clearance rate exceeding 98.6% across critical petrochemical, refinery, and power piping joints.

06

Transparent Tonnage Pricing

Definitive milestone billing and itemized per-MT rates with weekly man-hour logging and no surprise escalation clauses.

Compliance & Parameters

Technical standards & operational limits

Engineering ParameterMaple Field Standard
Welding StandardsASME Section IX, AWS D1.1, IBR, EN ISO 15614-1
Materials HandledCarbon Steel (A106/A516), Stainless Steel (304/316/321), Inconel, Monel, Duplex
NDT Acceptance100% Radiographic Testing (RT) / Ultrasonic Testing (UT) / Magnetic Particle (MPI)
Site Safety RecordZero Lost-Time Incidents (LTI) standard, OSHA & Plant HSE Compliance
Equipment MobilizationMobile DG Sets (125-250 kVA), 6G Welding Inverters, 50T-150T Telescopic Cranes
Geographic CoverageHazira Belt, Dahej PCPIR, Jamnagar, Mundra, Mumbai, Pan-India Deployment
Direct Engineering Estimation

Submit your on-site fabrication RFQ

Attach drawings, specifications, tonnage estimates, or site parameters. Our estimating engineers review all requirements under non-disclosure agreements and return an official proposal within 24 hours.

What Happens After Submission:

Immediate unique RFQ tracking number (CL-2026-XXXX) issued.
Technical feasibility and WPS/PQR requirement analysis by Welding Engineers.
Itemized cost estimation, tonnage rate, and mobilization schedule returned.

Request Engineering Quotation (RFQ)

Submit drawings, tonnage specifications, and scope of work for fast technical estimation.

ASME / ISO NDA Protected. Your technical drawings remain confidential.
On-Site Fabrication & Erection Services | Maple Heavy Engineering | Maple Heavy Engineering