Product Overview
SourcingProChina, a China-based sourcing agent, connects overseas buyers with verified manufacturers of fastener inspection and sorting equipment for screws, nuts, bolts, and precision turned parts. These systems detect thread damage, dimensional deviation, surface defects, and assembly errors on production lines, supporting 100% inline quality control rather than sample-based checking.
Through our supplier network, we source thread gauge testers, straightness testers, AI vision inspection systems, assembly-and-inspection combination machines, and automated tapping-and-checking equipment. Each machine model below lists verified technical parameters as provided by the manufacturing partner; buyers requiring third-party test reports or factory audits can request these directly through our sourcing team.
Core Technical Parameters
Nut Gauging Sorting Machine
| Parameter | Specification |
|---|
| Inspection Items | Plug hole, missing thread, tapping defect, go gauge fail, perpendicularity, height, appearance, concentricity, coaxiality |
| Additional Functions | Thread oil injection, air blowing, vision combination |
| Inspection Speed | 30–80 pieces/min |
| Feeding Method | Vibrating bowl + linear vibration + gripping |
| Discharge Method | Mechanical pushing/gripping |
| Detection Method | Stroke + torque + vision + sensors |
| Power Supply | 220V/50Hz, Total Power: 3kW |
| Air Pressure | 0.4–0.6 MPa |
| Dimensions | 2100×1200×1900mm |
| Weight | 800kg± |
| Options | Vertical hoist feeder, automatic transferring system, centrifugal feeding bowl, packing machine |
Screw & Bolt Gauging Sorting Machine
| Parameter | Specification |
|---|
| Inspection Items | Head size, head diameter, thread dimension, flange cracks, punch broken, socket coating, screw length, 360° thread scanning, go/no-go gauge inspection |
| Additional Functions | Eddy current hardness and crack detection (optional) |
| Inspection Speed | 45–200 pcs/min |
| Feeding Method | Vibrating bowl + guide feeder + gear feeder |
| Discharge Method | Air blowing + mechanical pushing |
| Applicable Scope | Length 30–65mm, diameter 5–12mm |
| Power Supply | 220V/50Hz, Total Power: 3kW |
| Dimensions | 2200×1200×1900mm |
| Weight | 800kg |
Bolt Straightness Check Sorting Machine
| Parameter | Specification |
|---|
| Inspection Items | Shank straightness, head size, head diameter, thread dimension, flange cracks, screw length, 360° thread scanning |
| Additional Functions | Eddy current testing, washer assembly (optional) |
| Inspection Speed | 40–60 pcs/min |
| Feeding Method | Vibrating bowl + guide feeder + gear feeder |
| Discharge Method | Mechanical gripping + automatic box placement |
| Applicable Scope | Length 60–160mm, diameter 5–10mm |
| Power Supply | 220V/50Hz, Total Power: 3kW |
| Dimensions | 2500×1200×1900mm |
| Weight | 800kg |
| Options | Automatic box placement, centrifugal feed bowl, vertical plates lifting feeder |
AI Vision Glass Disk Sorting Machine
| Parameter | Specification |
|---|
| Inspection Functions | Across flats, cracking, inner/outer dimensions, plugging/burr, thread presence, characters, solder joints, surface damage, flanging, height, thread size, diameter |
| Applications | Automotive fasteners, stamping parts, O-rings, 3C electronic components |
| Feeding Method | Belt conveyor/linear vibration feeder |
| Speed | Adjustable based on workpiece [需补充具体数据] |
| Power Supply | 220V/50Hz, Total Power: 1.5kW |
| Dimensions | 2100×1200×1900mm |
| Weight | 600kg |
| Options | Automatic transferring, packaging, feeding, four-camera thread checking |
High Speed Slotting Disk Sorting Machine
| Parameter | Specification |
|---|
| Inspection Functions | Across flats, cracking, inner/outer dimensions, plugging/burr, thread presence, characters, solder joints, surface damage, flanging, height, thread size, diameter |
| Applications | Automotive fasteners, 3C electronic components |
| Start/Stop | Servo motor |
| Feeding Method | Belt conveyor/linear vibration feeder |
| Speed | Adjustable based on workpiece [需补充具体数据] |
| Power Supply | 220V/50Hz, Total Power: 3kW |
| Dimensions | 2100×1200×1900mm |
| Weight | 800kg |
Precision Parts Sorting Machine (Custom)
| Parameter | Specification |
|---|
| Inspection Items | Socket, gauge check, perpendicularity, external dimensions, appearance, concentricity, cracks, hardness |
| Feeding Method | Robot system/vertical plates lifting feeder |
| Discharge Method | Mechanical stacking/gripping |
| Inspection Speed | 15–30 sec/piece |
| Detection Method | Stroke + torque + vision + sensors |
| Power Supply | 220V/50Hz, Total Power: 3kW |
| Dimensions | 2100×1200×1900mm |
| Weight | 800kg |
Automatic Assembly & Check Sorting Machine
| Parameter | Specification |
|---|
| Functions | Constant torque locking/unlocking, self-checking, automatic oil spraying, mixing detection, height check, vision inspection, eddy current testing |
| Applications | High-end automotive fastener assembly |
| Assembly Speed | 20–40 pcs/min |
| Feeding Method | Vibrating bowl + linear vibration + gripping |
| Discharge Method | Gripping |
| Power Supply | 220V/50Hz, Total Power: 3kW |
| Dimensions | 2100×1200×1900mm |
| Weight | 800kg |
Automatic Tapping & Checking Machine
| Parameter | Specification |
|---|
| Functions | Nut tapping, reaming, chamfering; optional go/no-go gauge, plug gauge, height checking |
| Applicable Objects | Through-hole nuts, blind-hole nuts, clip thread holes |
| Inspection Speed | 30–60 pcs/min |
| Feeding Method | Vibrating bowl + guide feeder + gear feeder |
| Discharge Method | Mechanical gripping unloading |
| Power Supply | Single phase 220V, Total Power: 5kW |
| Dimensions | 2500×1200×1900mm |
| Weight | 1000kg± |
Key Features
Comprehensive Defect Detection
Detects thread damage, dimensional deviation, surface flaws, cracks, and assembly errors across the model range listed above.
Inline Inspection Speed
Inspection speeds range from 30 to 200 pieces per minute depending on model, supporting 100% inline inspection instead of AQL sampling.
Multiple Detection Technologies
Combines mechanical gauging, torque sensing, machine vision, eddy current testing, and sensor-based measurement, selected according to the specific model's detection method column above.
Touch Screen Control Interface
Touch screen control panels with real-time inspection data display.
Configurable Feeding & Discharge
Vibrating bowl, belt conveyor, robotic loading, and automatic packing options, varying by model as listed in the parameter tables.
Customization
Available for specific part geometries, inspection items, and production line integration; custom specifications require direct confirmation with the manufacturing partner.
Application Scenarios
- Screw thread go/no-go gauging
- Nut thread inspection and sorting
- Bolt straightness testing
- Fastener dimension and appearance inspection
- Automotive fastener quality control
- Precision turned part sorting
- 3C electronic component inspection
- Assembly line quality verification
- Tapping quality inspection
- Thread oil residue removal and cleaning
FAQ
Q1: What defects can these inspection machines detect?
Depending on the model, these machines detect thread damage (missing thread, tapping defects), dimensional deviation (head size, length, diameter), surface flaws (cracks, scratches, burrs), flange defects, and internal defects (punch break, socket coating issues). AI vision-equipped models additionally detect characters, solder joints, and other surface appearance defects — see the parameter table for each model's specific inspection items.
Q2: What is the typical inspection speed?
Inspection speed varies by model: nut gauging sorting (30–80 pcs/min), screw/bolt gauging (45–200 pcs/min), straightness testing (40–60 pcs/min), tapping and checking (30–60 pcs/min), and assembly-and-check (20–40 pcs/min). AI vision sorting models are adjustable based on workpiece size [需补充具体数据].
Q3: Can the machine be customized for specific parts?
Yes. Manufacturing partners offer custom tooling, fixturing, and inspection configuration for specific part designs, in addition to the standard models listed above. Custom lead time and specification confirmation are handled through SourcingProChina's sourcing team.
Q4: What is the difference between AI vision and mechanical gauging?
Mechanical gauging uses physical probes, gauges, and torque/stroke sensors to directly verify thread and dimensional specifications. AI vision uses cameras and image processing for surface inspection, character recognition, and complex appearance defects. Several models above combine both methods for full coverage.
Q5: Is training available for machine operation?
Yes. SourcingProChina coordinates installation guidance, operation training, parameter setting, and maintenance procedures with the manufacturing partner, with both remote and on-site training options available on request.
Q6: Can the inspection machine be integrated with existing production lines?
Yes. Machines support integration with existing lines through automatic feeding systems, conveyor connections, and packaging machine linkage, configured per model as listed in the 'Options' column above.
Ordering Information
- MOQ: 1 set (subject to final confirmation with the manufacturing partner)
- Delivery Time: Standard models typically available within 30–60 days after order confirmation [需补充具体数据 — 按具体机型/工厂确认]
- Customization: Custom fixtures, software configuration, and inspection algorithms available upon request
- Payment Terms: T/T, L/C (negotiable)
- Warranty: 12 months after commissioning
- Packaging: Standard export packaging with protective film and wooden crates
For technical datasheets, factory audit reports, or bulk pricing, contact SourcingProChina's sourcing team directly.
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