Standard Automation — Overhead Loading

Okuma Gantry Loader (OGL) Installation & Repair

Independent installation and repair for the Okuma Gantry Loader (OGL) — including the loader’s control electronics, servo drives and the OSP integration behind it.

What the Okuma Gantry Loader Is

The Okuma Gantry Loader (OGL) is a high-speed, overhead loading system for lathes and grinders, moving stock into the machine and finished parts out from above rather than from the front or side. Its moving headstock lets the loader enter the machine regardless of where the turret is positioned, and an integrated turn-over device allows a complete part to be machined without manual intervention. Despite the automation, the machine stays accessible for manual setup or operation at any time.

OGL is genuinely modular — length and gripper design can be customized to the part, and stocker tables come in multiple sizes depending on volume. It’s programmed through g-codes and m-codes with an integrated teach pendant rather than a separate PLC system, using the same Okuma OSP control as the machine itself. Okuma’s own Factory Automation division describes OGL as something that can be retrofitted onto experienced machines, not just ordered factory-integrated on a new one — reported ROI typically runs 6 to 9 months.

We install OGL systems on compatible machines and repair the electronics on units already in service. We are an independent service provider — see our retrofit & modernization and testing & diagnostics services for more on how we approach this kind of work.

6–9 mo.
Typical reported ROI timeframe
Modular
Custom length and gripper configurations
Overhead
Loads and unloads from above the machine
Retrofit Ready
Confirmed installable on existing machines

What’s Included

An OGL system is more than just the overhead rail. Here’s what’s inside, and what we support on each piece.

Moving Headstock & Rail

Positions the loader to enter the machine regardless of turret position.

Swivel Gripper Hand

Custom-configured for the part being handled, exchangeable as production needs change.

Integrated Turn-Over Device

Flips the part mid-cycle when both sides need to be machined in one automated run.

Stocker Table

Holds raw and finished parts, sized to match your production volume.

Photo coming soon

Common OGL Faults

Loader fails to enter the machine correctly

Often a headstock position issue rather than a turret conflict — the moving headstock is specifically designed to work around turret position, so we check the drive electronics first.

Part machined on the wrong face

Almost always a turn-over device sensor issue rather than a programming error — worth checking before re-verifying your g-code.

Loader loses position or won’t move

Typically a servo drive or encoder fault rather than mechanical rail wear — we test the electronics before recommending a mechanical inspection.

Teach pendant unresponsive or frozen

Display and interface board faults are common on units that have been running for years — usually repairable at board level.

See our fault analysis service for more on how we approach an OGL diagnosis.

How OGL Installation & Repair Works

New installation and repair follow different paths, but both start the same way: tell us what you need.

1

Tell Us the Goal

New installation on a compatible machine, or a fault on an existing OGL — plus your OSP control generation and part specifications.

2

We Scope the Work

For installs, we confirm machine compatibility, rail length and gripper configuration. For repairs, we identify the faulty board or drive.

3

Install, Commission or Repair

On-site installation and OSP integration, or component-level bench repair — whichever the job calls for.

4

Tested Before Handover

Verified running actual production cycles, not just powered on, before we call it done.

Frequently Asked Questions

No. We are an independent service company, not an authorized Okuma dealer, distributor or service partner. We install, retrofit and repair OGL systems on compatible machines.

Ready to Add OGL, Or Need One Repaired?

Tell us your machine model and what you need — a new installation, or a fault on an existing unit — and we’ll help you figure out the right next step.

Contact Us