What Information Should an OEM Provide for a Special-Purpose Machine Quotation?
Prepare a clearer special-purpose machine RFQ with the workpiece, process, tolerance, production, automation, installation and acceptance data engineers need.
To request a useful special-purpose machine quotation, provide the workpiece drawing or key dimensions, material and starting condition, machining operations, tolerance and surface requirements, expected production volume or cycle objective, loading and clamping method, utilities, installation limits, control interface, and acceptance criteria. These inputs let an engineering team review the application before proposing a configuration, price, or delivery plan.
An incomplete RFQ often creates extra questions and avoidable assumptions. A structured inquiry helps both sides identify technical gaps early and compare proposals on the same basis.
1. Workpiece drawing, material, and starting condition
Start with the part that the machine must process. A 2D drawing is usually the clearest reference. A 3D model can help when the geometry, clamping surfaces, or tool access is difficult to describe.
- Part name and drawing number
- Overall dimensions and approximate weight
- Material grade and material condition
- Casting, forging, bar, welded assembly, or other starting form
- Incoming dimensional variation or machining allowance
- Surfaces that may be used for locating and clamping
- Areas that must remain free from clamps or fixtures
Mark confidential files clearly and send only the information required for technical evaluation.
2. Machining operations and sequence
List each required operation instead of writing only “complete machining.” The engineering team needs to understand what the machine must do and what will remain on other equipment.
- Hole locations, diameters, depths, and quantities
- Drilling, boring, milling, tapping, facing, or chamfering operations
- Operations that must be completed in one clamping
- Existing datum system and proposed machining datums
- Tool access direction
- Required operation sequence, if it is fixed by the process
- Operations completed before and after this machine
If the sequence is open for discussion, state that clearly. It gives the engineering team room to evaluate alternative layouts without treating an early idea as a fixed requirement.
3. Tolerance, surface finish, and acceptance method
Highlight the characteristics that control machine and fixture design. Do not rely on a general note when only a few dimensions are critical.
- Dimensional tolerances
- Position, flatness, perpendicularity, coaxiality, or other geometric requirements
- Surface finish requirements
- Datum references
- In-process or final inspection requirements
- Gauge, CMM, master part, or other intended measurement method
- Any customer-specific acceptance standard
The drawing requirement and the acceptance method should agree. If a feature cannot be measured consistently, the quotation stage is the right time to resolve the method.
4. Production volume, cycle objective, and automation level
Explain how the machine will be used. Annual volume alone is not enough to define the required production system.
- Annual and monthly production volume
- Number of shifts and planned operating hours
- Product mix and expected changeover frequency
- Desired cycle objective and how it is measured
- Manual, assisted, or automatic loading preference
- Buffering, transfer, marking, cleaning, or inspection needs
- Expected operator involvement
Treat cycle time as an evaluation target until the process, tooling, loading time, and acceptance boundary have been reviewed. A target in the RFQ is an input, not a guaranteed result.
5. Loading, locating, and clamping conditions
Describe how the part arrives at the machine and how it can be handled safely. Photos or a short video of the current process are useful when available.
- Manual, crane, robot, gantry, conveyor, or pallet loading
- Preferred loading direction and working height
- Available locating surfaces and clamping zones
- Part orientation during machining
- Need for part presence, position, or clamp confirmation
- Changeover method for multiple part types
- Requirements for mistake prevention
The final fixture concept remains subject to engineering review. The RFQ should describe constraints and desired behavior rather than assume an unverified fixture design.
6. Chips, coolant, and the working environment
Machining conditions affect guarding, chip removal, coolant management, and maintenance access.
- Dry or wet machining preference
- Coolant type, if specified
- Expected chip form or known chip-handling problems
- Mist extraction or filtration requirements
- Ambient temperature, dust, humidity, or corrosive conditions
- Cleaning requirements between cycles
- Local safety or environmental requirements that the equipment must address
If the workpiece is already processed on another machine, information about the current tool, cutting parameters, chip behavior, and coolant can provide useful context. It should be labeled as reference data rather than a required final process.
7. Installation space, utilities, and control interface
Provide the conditions at the destination factory before the machine layout is fixed.
- Available floor space and height restrictions
- Access doors, aisles, foundations, and lifting limits
- Electrical supply and frequency
- Compressed air and coolant utilities
- Network or data-collection requirements
- Required PLC, CNC, robot, or line interface
- Language requirements for the HMI and documentation
- Applicable electrical or safety standard requested by the buyer
- Destination country and final installation location
For a machine that must connect to an existing line, attach the available interface specification and describe which system controls the handoff.
8. Documents that make technical review faster
| Document or input | Why it helps |
|---|---|
| 2D workpiece drawing | Defines dimensions, tolerances, datums, and machining features |
| 3D model | Clarifies geometry, access, and possible clamping areas |
| Material specification | Supports process and tooling review |
| Current process sheet | Shows upstream and downstream operations |
| Sample part photos | Helps explain casting, clamping, and chip conditions |
| Production target | Defines expected volume, shifts, and cycle objective |
| Factory layout | Shows space, loading path, and service access |
| Interface document | Defines communication with robots, conveyors, or line controls |
| Acceptance specification | Aligns technical review with the buyer’s final verification method |
JNYO’s product range can help buyers identify whether a modular power head, slide table, or a broader machine concept may be relevant. Product selection still depends on the application data and technical review.
9. What happens after the inquiry is received?
The first step is a completeness check. The engineering and sales teams may ask questions about the drawing, process boundary, tolerance, production target, loading method, or utilities. After the required inputs are available, the application can move into technical evaluation.
- Missing or conflicting requirements
- Features that need a defined measurement method
- Operations that require a process discussion
- Layout or loading constraints
- Interfaces that need confirmation from the buyer or another supplier
- Documents required before a proposal can be prepared
Submission of an inquiry does not by itself confirm machine capability, final configuration, price, cycle time, or delivery date. Those items must be addressed in the resulting technical and commercial documents.
Engineering inquiry checklist
- Workpiece drawing or key dimensions
- Material and starting condition
- Required machining operations
- Critical tolerances and surface finish
- Datum and acceptance method
- Annual or monthly volume
- Cycle objective and measurement boundary
- Loading, locating, and clamping constraints
- Automation and interface requirements
- Coolant, chip, and environmental conditions
- Installation space and utilities
- Destination country and applicable standards
- Photos, process sheets, or other useful references
If some information is still undecided, label it as open instead of estimating a value. This makes the next technical discussion more efficient.
Send the application for review
Prepare the checklist and submit the available files through the JNYO contact page. If you need public product references before sending the RFQ, review the product range or the available 3D models and downloads.
The submitted information will be used to organize the engineering review. Any proposed configuration, performance, price, or delivery plan remains subject to formal technical and commercial confirmation.
Frequently asked questions
Can I request a quotation without a complete drawing?
You can start an inquiry with key dimensions, photos, material, operations, and tolerance information. The engineering team may still need a controlled drawing or model before it can evaluate the application in detail.
Should I provide a target cycle time?
Yes. State the target and explain whether it includes loading, clamping, machining, inspection, unloading, and changeover. The target remains an input for evaluation until the complete process has been reviewed.
What if the loading or automation method is not decided?
Describe the production volume, available space, operator plan, and interfaces, and mark the automation method as open. This allows the technical discussion to compare feasible options.
Is an annual production volume enough?
It is useful, but also provide shifts, operating hours, product mix, batch size, and changeover frequency. These factors affect how the production requirement is interpreted.
Does submitting this information guarantee a quotation?
No. It enables a completeness check and technical review. A quotation can only follow after the relevant application requirements and commercial conditions have been confirmed.