FANUC M-710iC/50 50kg Payload 6 Axis Industrial Robot for CNC Machine Tending

FANUC M-710iC/50 for CNC Machine Tending

Where the money actually leaks. A machine shop rarely loses on cutting time. It loses on the walk: the operator stops the spindle, opens the door, unloads, blows the fixture, loads the next blank and closes up again — and on a short cycle that walk can absorb a fifth of the shift. Worse, the door stays open while it happens, so chips and coolant mist settle on the fixture and the next part seats badly. A robot that is sized to stand at the door and work through the exchange changes the arithmetic: the spindle restarts sooner, the fixture is blown at the same point in every cycle, and the part seats the same way at the end of the shift as it did at the start. What makes that possible is not one headline number but the combination — enough wrist capacity to carry a double gripper and a heavy casting together, enough reach to cover the load station and two machine doors without a rail, and a wrist that survives coolant splash and chip impact for two shifts a day.

Built for the environment, not the brochure. Coolant arrives as mist, as splash and sometimes as a direct jet; cast iron and aluminium chips arrive hot and abrasive. The protection split on this arm matters more than the payload figure: the body is rated for an enclosed cell, while the wrist and J3 arm carry the higher rating precisely because they sit inside the splash zone. That is the difference between an arm that runs a full season and one that is pulled for a wrist rebuild in the middle of a customer order. Where a shop washes down its cell or runs high-pressure coolant at the tool, a cover and dress pack are quoted at the layout stage — fitting them later costs the downtime as well as the part.

What Changes on the Floor

• Door time, not robot speed. Unload and load happen inside a single door opening with a double gripper, which is where most of the lost cycle time is recovered on a heavy-part cell.
• Two machines from one base, a rail when the layout grows. One floor position covers two adjacent machine doors, and the same mounting flange accepts a seventh-axis rail when a third machine is added, so the cell expands without a second controller or a second safety circuit.
• Sequencing driven by machine state. Door open, clamp confirm, chuck pressure and part-present signals are exchanged with the machine, so the arm waits on the machine rather than on a timer and never burns an idle cycle.
• Repeatable part seating. The same approach path and blow-off point every cycle removes the re-clamp step that causes most scrap in manual loading, and it makes first-part-good the normal outcome rather than the occasional one.

What It Gives the Integrator

• Open controller interfaces. Standard industrial fieldbuses plus a configurable discrete I/O block let the cell PLC talk to the machine directly, without a protocol gateway in the cabinet.
• Documentation handed over as a set. Flange drawing, I/O signal list, safety schematic, program backup and unit-level BOM are released together at FAT, which shortens the technical review with the end user to one meeting instead of a month of drawing exchange.
• Spare parts commonality. The series shares motors, reducers, cables and controller boards across models, so a service stock held for one cell covers several machines rather than becoming a single-source order.
• Controllable total cost of ownership. Commissioning hours are reduced against a non-pre-commissioned unit, based on deployment feedback from integrators running comparable tending cells, and wear parts are quoted at handover so the maintenance budget is known in advance.

Frequently Asked Questions

Q: Can the arm be paired with a gantry, an external axis or a vision system?
A: Yes, with the scope fixed per cell. A gantry or seventh axis is treated as an external axis driven by the cell controller, and vision runs on the controller or an external PC with trigger and result signals exchanged over the fieldbus or discrete I/O. Gripper design, vision recipe and gantry mechanics stay with the integrating party; the arm side delivers the signals, the mapping and the safety interface, and that split is written into the FAT document set.

Q: Under what conditions is the quoted repeatability measured, and does it hold on site?
A: The figure is a repeatability value measured to ISO 9283 at the factory on the delivered unit, at a stabilised ambient temperature, with the arm at working temperature and the base rigidly anchored. It is not a path accuracy claim. On site it holds only with a stiff base plate and correct anchors; a flexible plate or a cold start will show more scatter than the test report. Where the process is sensitive, the FAT plan includes a warm-up routine so the number at acceptance matches the number in production.

Q: Is the body rating sufficient in a cell with coolant mist and chip spray?
A: For an enclosed cell with mist, splash and chip impact, yes — and the higher-rated wrist and J3 arm protect the part of the arm closest to the tool. It is not a washdown rating: high-pressure jets aimed at the arm, tank cleaning or abrasive blasting need an added cover and dress pack quoted separately. If the shop washes the cell, that cover should be planned at the layout stage rather than after the first motor failure.

Q: What does warranty and after-sales cover, and where does it stop?
A: The warranty covers the arm, controller and process package for the agreed period counted from SAT rather than from shipment, with unit-level spare parts and lead times quoted at handover. Wear items, crash damage, and failures traced to the fixture, the cell wiring or the integrator program fall outside that boundary. Because that clause decides who pays for a site visit, it is written into the co-delivery contract before the order is placed.