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Business Strategy

CNC Service Contracts Guide

OEM protection or independent flexibility? How to evaluate if an Annual Service Agreement (ASA) is right for your shop.

The Big Question: Pay Now or Pay Later?

Machine tool distributors push service contracts aggressively at the point of sale. These contracts typically cost 3-8% of the machine's value annually.

But are they insurance, or just margin padding? The answer depends entirely on your shop's internal capabilities and uptime requirements.

OEM / Distributor Contract

  • Guaranteed Response Time (e.g. 24hrs)
  • Factory Trained Techs
  • Firmware Updates Included
  • High Annual Cost ($5k-$20k)

Independent / 3rd Party

  • Lower Hourly Rate ($95-$150)
  • Flexibility (Fixes usually faster)
  • No Response Guarantee
  • Limited Access to Proprietary Parts

Contract Evaluation Checklist

Before signing any Service Level Agreement (SLA), look for these critical clauses. If they aren't there, negotiate them in.

  • Response Time Penalty: If they don't show up in 24/48 hours, do you get a credit? If not, the guarantee is worthless.
  • Parts Discount: Contract holders should get 10-15% off spare parts. This alone can pay for the contract.
  • Preventive Maintenance Visits: Does it include 1 or 2 PM visits per year? This is tangible value (fluids, filters, geometry check).
  • Travel Costs: Is travel included? "Zone charges" can add $500 per visit even with a contract.

When to Buy the Contract

YES, BUY IT IF:

  • You run 24/7 lights-out production. Downtime costs >$1000/hr.
  • You have complex 5-axis machines or lasers where calibration requires expensive tools (Renishaw ballbar/laser).
  • You have no internal maintenance staff.

NO, SKIP IT IF:

  • You have redundant machines (can move work if one goes down).
  • You have a strong internal maintenance team.
  • The machine is simple (2-axis lathe, 3-axis mill) and parts are generic.

TCO Calculator

See how service contracts affect your Total Cost of Ownership over 5 years.

Calculate Machine TCO

The "Fine Print" Trap

Most contracts cover Labor Only. Parts are almost never included unless it's an extended warranty on a new machine.

Don't assume a contract means "free repairs". It usually just means "guaranteed technician availability".