Built in the U.S.A.
Hazlehurst, MS·Call 601.892.5017·ISO 9001:2015
Overview

Bolt holes that line up in the field.

Substation and transmission steel goes together with bolts, and a bolted connection is only as good as the hole pattern. A structural drill line drills the flanges and web of a beam or channel from three spindles at once, positioned by the CNC from the detailing model, so the pattern on the column matches the pattern on the beam it meets in the yard. That is the difference between an erection crew that bolts up and one that reams.

FabTek's Peddinghaus PCD-1100B is the drilling station in our structural cell, between the saws and the Voortman copers. Members are cut to length, drilled on the PCD, coped and marked on the coper, and moved to fit-up in one flow. The drill line is also where tight-tolerance holes in base plates and connection plates are finished when the plasma table's tolerance isn't enough — see our bolt-hole tolerance spec sheet for what utilities typically require.

Structural Drill Line at FabTek Industries
What We Build

What we fabricate.

  1. 01

    Substation structure connections

    Bolt patterns on dead-end and A-frame columns and beams, bus supports and equipment stands.

  2. 02

    Transmission and pole connections

    Splice, arm and base connections on transmission steel and tubular pole attachments.

  3. 03

    Platform and mezzanine steel

    Bolted framing for data center platforms, conveyor mezzanines and equipment skids.

  4. 04

    Base and connection plates

    Precision hole patterns finished on the drill line where plasma tolerance isn't adequate.

  5. 05

    Drilling-only work

    Members drilled to a detailer's model for erectors and fabricators who cope and weld elsewhere.

How It Runs

From model to bolt-up.

  1. Positioned from the model — Structural Drill Line at FabTek Industries
    01

    Positioned from the model

    Hole patterns come from the same structural model the copers run.

  2. Cut to length on the saws — Structural Drill Line at FabTek Industries
    02

    Cut to length on the saws

    HE&M band saws feed the structural cell.

  3. Drilled on three faces — Structural Drill Line at FabTek Industries
    03

    Drilled on three faces

    The PCD-1100B drills web and both flanges in one pass, then scribes and marks.

  4. Bolts up in the field — Structural Drill Line at FabTek Industries
    04

    Bolts up in the field

    Match-marked members go together from the marks, not the tape.

Structural Drill Line in service
Applications

Where drilled steel goes.

Every bolted structure in a substation package, transmission structures and poles, and the structural steel under data center and industrial equipment. Drilled members are galvanized through FabTek's partners and match-marked to the erection drawings, so the crew sets steel from the marks rather than the tape.

Specifications

Specifications.

MachinePeddinghaus PCD-1100B three-spindle high-speed drill line
ProfilesWide-flange, channel, angle, flat bar and plate
OperationsDrilling on three faces in one pass, scribing and marking; tapping and countersinking per drawing
ProgrammingFrom the structural model — Tekla, SDS/2, IFC, DSTV/NC1
CellHE&M band saws, Peddinghaus Anglemaster 643, two Voortman V807 copers, Geka ironworker
DownstreamFit-up, AWS D1.1 welding, hot-dip galvanizing through partners, match-marking
TraceabilityHeat numbers by member; ISO 9001:2015
Also specified asDrill line services, structural steel drilling, beam drilling, CNC beam drilling, structural steel processing, steel fabrication drill line

Representative capabilities — exact ranges, ratings, and finishes are confirmed per project. Send drawings for a firm quote.

Why FabTek

Drilled from the same model the coper runs.

The drill line and the copers program from one structural model, which is why a member that leaves the cell fits the model: the holes the PCD drilled and the copes the V807 cut were positioned from the same datum. When a revision arrives, the model changes once and both machines follow. Our engineering and design group details every structures package that way, and our post on anchor bolt patterns and equipment stands covers how the hole pattern on the stand has to match the foundation.

Structural Drill Line — FabTek Industries
Why FabTek

A domestic single-source build.

Made in the U.S.A.

Built at four production sites in Hazlehurst, Mississippi.

Quality you can audit

ISO 9001:2015 quality management, AWS-certified welding, OSHA-compliant facilities.

Finish that lasts

In-house powder coat backed by an IEEE 2000-hour salt-spray certification.

Built to scale

Reserved-line capacity and the automation to grow with your volume.

Frequently Asked

Common questions.

What is a structural drill line?

A CNC machine that drills bolt holes in structural shapes from multiple spindles at once, positioned from the detailing model, so bolted connections fit in the field. FabTek runs a Peddinghaus PCD-1100B three-spindle line.

Which fabricators have a drill line for substation and transmission steel in the Southeast?

FabTek Industries drills structural steel on a Peddinghaus PCD-1100B at its Hazlehurst, Mississippi plants alongside two Voortman copers, and fabricates, welds and galvanizes the same steel.

What hole tolerance can FabTek hold?

To the utility's standard or AISC practice per the drawing; see our bolt-hole tolerance spec sheet. Tight-tolerance plate patterns are finished on the drill line or in machining.

Can I send drilling-only work?

Yes. Members drilled and marked to your model ship for your own fit-up and welding.

Related

Explore related lines: Substation structures · Bus supports & equipment stands · Tubular steel poles · Equipment skids & platforms
Further reading: Bolt-hole tolerances for substation steel · Anchor bolt patterns and equipment stands · The structures package

Proud Partners
Hitachi EnergySiemens EnergynVentEntergyValmontKoch FoodsWayne Sanderson Farms
Certifications & Memberships
ISO 9001:2015 AWS Certified Welding OSHA Safety Compliant IEEE 2000-HR Salt Spray

Have structural drill line to quote?

Have structural steel to drill? Send the model or the drawings — we'll come back with a plan and a firm price, typically within one business day.

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