Compare deep hole drilling machine quotations only after every supplier is working from the same drawing, material, hole table, quality limits and production target. Build a compliance matrix that separates included equipment, options, exclusions and buyer responsibilities, then convert performance claims into measurable FAT and SAT tests. Check the complete process—not maximum drilling depth alone—including work envelope, table load, spindle, coolant flow and filtration, tooling, fixtures, cycle time, safety, documentation, installation and support. A lower initial price is not a saving when essential process equipment or acceptance evidence is missing.
1. Give every supplier the same application package
Send the same drawing, part size and weight, material, hole table, quality limits, annual quantity and cycle target. These 7 input groups prevent suppliers from pricing different machines for different assumptions.
2. Build an included-option-excluded matrix
Record every quoted item under included, optional or excluded instead of relying on narrative descriptions. A practical matrix should cover at least 10 groups: machine, CNC, coolant, filtration, chiller, chip handling, tooling, fixtures, safety, documentation and service.
3. Compare machine architecture before headline specifications
Choose three-axis drilling-milling for accessible holes and integrated secondary work, horizontal gun drilling for repeatable straight-hole production, and five-axis positioning for compound angles or multiple faces. HYM publishes 3 principal platforms—DM, DH and AMD—plus engineered custom systems.
4. Verify the usable work envelope
Compare workpiece dimensions plus fixture, rotary device and tool-approach clearance with usable travels and table area. Representative HYM AMD-280 data lists 2,800/1,600/1,500 mm X/Y/Z travels, but a drawing review is still required to confirm access.
5. Check permissible load under the proposed setup
Add the workpiece, fixture, rotary equipment and auxiliary supports before comparing the total with the permitted table load. The representative AMD-280 specification lists a table-load rating of 25 t, subject to the ordered configuration and loading conditions.
6. Compare drilling range against the actual hole table
Require the supplier to mark every hole diameter, depth, angle and material condition as compliant, conditional or outside scope. Published representative HYM ranges include Ø1.5–40 mm for DM platforms and Ø3–60 mm for selected DH and AMD platforms.
7. Separate spindle specifications by process
A combined drilling-milling machine may use different spindle systems for gun drilling and milling, so compare interfaces, speed, power, torque and duty for each operation. Representative HYM DM configurations support 5 process groups: gun drilling, twist drilling, U-drilling, milling and tapping.
8. Compare the coolant system at the operating point
Ask for delivered pressure and flow for the proposed tool diameter, plus pump curve, filter rating, tank capacity and temperature-control method. These 6 data fields are more useful than a maximum-pressure number without corresponding flow.
9. Define tooling and workholding boundaries
List gun drills, guide bushes, toolholders, steady supports, fixtures, rotary tables, clamps and setup gauges by quantity. A quotation with 8 named tooling and workholding categories is easier to audit than a single “standard accessories” line.
10. Recalculate cycle time from visible assumptions
Separate cutting travel, feed, approach, retract, indexing, tool change, probing and manual handling. For example, 600 mm at 60 mm/min equals 10 minutes of theoretical cutting time before any non-cutting motion is added; this arithmetic is not a recommended cutting parameter.
11. Convert claims into FAT and SAT evidence
For each critical result, state the test part, material, tool, measurement method, instrument, sample quantity and pass-fail limit. These 7 evidence fields turn brochure statements into an auditable acceptance protocol.
12. Compare total project cost and responsibility
Add options, tooling, fixtures, freight, insurance, import charges, unloading, foundations, utilities, installation, training and planned spare parts to the machine price. A fair comparison therefore has at least 12 cost lines, with Incoterm, currency, validity, payment stages and delivery basis stated separately.
| Area | Quotation evidence | Acceptance evidence |
|---|---|---|
| Application | Drawing and hole-table compliance | Approved representative part |
| Machine | Travels, load, spindle and configuration | Identity and function checks |
| Process | Tooling, coolant, filtration and cycle assumptions | Timed full-depth cutting test |
| Quality | Diameter, straightness and roughness limits | Recorded measured results |
| Project | Delivery, installation, training and support scope | SAT and handover record |
Send one representative drawing, hole table and production target. HYM will return a configuration proposal with the technical assumptions that need confirmation before price comparison.
Frequently asked questions
What should a deep hole drilling machine quotation include?
It should identify the workpiece basis, machine model and configuration, process range, travels and load, spindle and coolant system, tooling and fixtures, cycle assumptions, FAT criteria, documentation, installation scope, warranty and commercial terms.
Can two machine quotations be compared by price alone?
No. Normalize both quotations to the same workpiece, process, acceptance criteria and included scope before comparing price; otherwise excluded tooling, fixtures, coolant equipment or service can distort the result.
Which data should a buyer send before requesting a quotation?
Send the drawing, part dimensions and weight, material and hardness, hole diameter, depth and angle, tolerance and roughness, annual quantity, cycle-time target and required secondary operations.
How should quotation claims be verified?
Convert every critical claim into a FAT or SAT line with a measurement method, instrument, sample quantity and pass-fail limit agreed before the order.
Compare available HYM machine platforms, use the FAT checklist before shipment, and complete the installation and SAT checklist after delivery.