Reject and Good Pcs Detector

Reject and Good Pcs Detector is an electronic inspection and poka-yoke control device used to identify good parts and bad parts in production machines. It works like a Go/No-Go gauge using sensors, switches, probes and customized checking points according to the component, fixture and machine requirement.

UMA Industries supplies reject and good pcs detector systems, poka-yoke controllers, sensor-based inspection devices, relay-output checking controllers, automation devices and customized electronic control systems for production machines, assembly lines, inspection fixtures, SPM machines, press-shop machines and component manufacturing industries.

The Reject and Good Pcs Detector can be used for checking different parameters such as part presence, part height, depth, level, angle, inclination in degree, position, orientation, hole presence, fixture seating, assembly condition and multi-point sensor confirmation. If the part is bad, missing, wrongly placed or outside the selected checking condition, the device raises an alarm and provides relay output.

The relay output can be connected to a buzzer, tower lamp, PLC input, solenoid valve, pneumatic cylinder, rejection gate, reject-bin door or machine interlock system to separate bad parts from good parts automatically.

Technical Specifications of Reject and Good Pcs Detector

• Product Name: Reject and Good Pcs Detector
• Device Type: Electronic poka-yoke and Go/No-Go inspection controller
• Application: Good part and reject part detection
• Checking Method: Sensor and switch based inspection
• Input Type: Proximity sensor, limit switch, micro switch, photo sensor, reed switch, LVDT, angle sensor or customized input
• Inspection Parameters: Presence, position, height, depth, level, angle, inclination, orientation and assembly condition
• Output: Alarm output and relay output
• Relay Use: Solenoid valve, pneumatic cylinder, reject-bin door, diverter gate, buzzer, tower lamp or PLC input
• Indication: Good / Reject / Fault indication as per model design
• Installation: Machine control panel, inspection fixture, assembly station or SPM panel
• Customization: Sensor quantity, checking logic, relay action and display indication can be customized

What is Reject and Good Pcs Detector?

Reject and Good Pcs Detector is an industrial inspection controller used to confirm whether a component is acceptable or defective before the next production step. It is used where manual inspection is slow, inconsistent or risky for mass production.

The system works on the poka-yoke principle. Poka-yoke means mistake-proofing. The device checks important part conditions using sensors and switches. If all required conditions are correct, the part is treated as good. If any required condition is missing, wrong or out of limit, the part is treated as reject and the controller activates an alarm or relay output.

Go/No-Go Gauge Type Electronic Checking

A mechanical Go/No-Go gauge checks whether a part fits within a specified limit. The Reject and Good Pcs Detector performs a similar function electronically using sensors, switches and logic control.

Instead of depending only on manual checking, the device can check part presence, part level, height, depth, angle, inclination, orientation and correct assembly condition. This helps reduce human error, improve inspection speed and prevent defective components from moving forward in production.

Sensor and Switch Based Detection

The device can use different types of sensors and switches depending on the part and checking requirement. Each sensor is installed at the required checking point on the fixture, machine or inspection station.

• Proximity Sensor: For metal part presence and position detection.
• Photo Sensor: For non-contact part detection, hole detection or edge detection.
• Limit Switch: For mechanical position confirmation.
• Micro Switch: For small mechanical contact checking.
• Reed Switch: For pneumatic cylinder position confirmation.
• LVDT Sensor: For height, depth or displacement measurement.
• Angle Sensor: For measuring angle or inclination in degree.
• Custom Probe: For special fixture-based Go/No-Go checking.

Good Part Detection

A good part is confirmed only when all required sensor conditions are correct. For example, the component may need to be fully seated, holes may need to be present, height may need to be within range, angle may need to be correct and all fixture switches may need to operate properly.

When the checking result is good, the device can allow the machine cycle, open the good part path, give OK indication, send signal to PLC or allow the operator to continue the next step.

Reject Part Detection

A reject part is detected when any required condition is not satisfied. The device can raise an alarm and operate relay output for rejection action.

The relay output may be used to operate a solenoid valve or pneumatic cylinder to change the part direction, open a reject bin door, operate a diverter gate, stop the machine or alert the operator through buzzer and lamp indication.

Applications of Reject and Good Pcs Detector

Assembly Line Poka-Yoke

Assembly lines use reject and good pcs detector systems to check whether all parts are assembled correctly before the product moves to the next process.

Press Shop Component Checking

Press shops use sensor-based checking systems to verify punched holes, formed shape, part presence, orientation and proper seating in fixtures.

Automobile Component Manufacturing

Automobile component manufacturers use poka-yoke inspection systems for brackets, housings, clips, washers, bushes, sheet-metal parts and machined components.

Height and Depth Checking

The system can be used with suitable sensors to check part height, depth, step level, insertion depth, component seating and displacement.

Angle and Inclination Checking

Angle or inclination in degree can be measured using suitable angle sensors where the part position or tilt must be checked before acceptance.

Hole Presence and Position Checking

Photo sensors, probes or proximity sensors can be used to check whether holes, slots, cuts or required openings are present in the component.

Pneumatic Rejection Systems

The relay output can operate a solenoid valve that drives a pneumatic cylinder to push bad parts into a reject bin or separate bad parts from the main line.

SPM and Fixture-Based Machines

Special-purpose machines use reject and good pcs detector controllers for fixture confirmation, part checking, process interlocking and automatic rejection.

Packaging and Sorting Machines

Packaging and sorting machines use the device to identify wrong parts, missing parts, incorrect position or rejected products and separate them automatically.

Quality-Control Stations

Manual and semi-automatic quality-control stations use this device to improve checking consistency and reduce operator judgment errors.

Why Choose Our Reject and Good Pcs Detector?

• Works like electronic Go/No-Go gauge
• Poka-yoke based mistake-proofing system
• Sensor and switch based checking at required levels
• Can check height, depth, angle, inclination and part presence
• Alarm output for bad parts
• Relay output for solenoid, cylinder or reject-bin door
• Suitable for production machines and inspection fixtures
• Custom input and output logic available
• Useful for SPM, assembly line and automation systems
• Helps reduce rejection, rework and customer complaints

How Reject and Good Pcs Detector Works

1. The part is placed in the fixture or reaches the checking station.
2. Sensors and switches check the part at required points.
3. The controller reads all sensor inputs.
4. The embedded logic compares input conditions with required good-part condition.
5. If all conditions are correct, the controller gives good part indication or allows next operation.
6. If any condition is wrong, the controller identifies the part as reject.
7. The controller raises alarm for bad part condition.
8. The relay output operates a solenoid, cylinder, reject gate or reject-bin door if required.
9. The machine can be stopped or interlocked until the fault is cleared.

Relay Output for Reject Action

The Reject and Good Pcs Detector includes relay output for machine or rejection system interface. The relay can be used for different actions according to the machine design.

• Operate alarm buzzer
• Operate tower lamp
• Send reject signal to PLC
• Operate solenoid valve
• Move pneumatic cylinder
• Open reject bin door
• Change part direction through diverter gate
• Stop machine after bad part detection
• Interlock next machine cycle

Measurement and Checking Options

Level Checking

Different sensor points can be placed at various levels to check whether the part surface, step, component or assembly height is correct.

Height Checking

Height checking can be done using sensors, probes or displacement measurement depending on accuracy requirement and part design.

Depth Checking

Depth checking can be used for holes, slots, inserted components, pressed parts, bush fitting or assembled component depth.

Angle Checking

Angle measurement in degree can be used where the part must be placed or formed at a specific angle.

Inclination Checking

Inclination checking is useful for tilted components, fixture orientation, lever position, product position and assembly alignment.

Presence Checking

Presence checking confirms whether the required part, insert, washer, bush, clip, cap, pin or component is available at the correct place.

Installation Instructions

• Install the controller inside a clean and protected electrical control panel.
• Mount sensors and switches at exact checking positions.
• Use stable mechanical brackets for sensor mounting.
• Protect sensors from oil, coolant, dust, vibration and mechanical damage.
• Keep sensor wiring away from motor, solenoid, contactor and VFD wiring.
• Use ferrules and proper terminal marking in the control panel.
• Connect relay output according to the required machine action.
• Use interposing relay where solenoid or external load current is higher.
• Test every sensor input before production.
• Test good part and bad part conditions during commissioning.

Operating Instructions

1. Switch ON the machine and detector controller.
2. Place a known good part in the fixture.
3. Check that all required sensors show correct condition.
4. Run the checking cycle and confirm good part output.
5. Place a known bad part or simulate missing condition safely.
6. Confirm alarm output and reject relay operation.
7. Check solenoid, cylinder or reject-bin door action if connected.
8. Start production only after successful good and reject testing.
9. Do not bypass bad part alarm during production.

Maintenance Instructions

• Clean sensors regularly according to working environment.
• Check sensor mounting and alignment periodically.
• Inspect switch operation and mechanical movement.
• Check cable condition and terminal tightness.
• Verify relay output, alarm and rejection system operation.
• Check pneumatic cylinder and solenoid valve if used for rejection.
• Test one known good part and one known bad part during preventive maintenance.
• Do not change sensor position without revalidation.

Precautions for Reject and Good Pcs Detector

• Do not bypass the detector during production.
• Do not use loose sensor brackets.
• Do not allow chips, oil, coolant or dust to block sensors.
• Do not run sensor cable with power cable in the same conduit.
• Do not connect heavy load directly to relay output without checking relay rating.
• Use suitable pneumatic and electrical safety for reject cylinder movement.
• Protect operator from moving rejection mechanism.
• Validate the system after any fixture or sensor change.

Common Fault Conditions

• Part missing in fixture
• Part not seated properly
• Wrong part orientation
• Height not within acceptable range
• Depth not correct
• Angle or inclination not correct
• Sensor blocked by dust, oil or chips
• Sensor misalignment
• Switch not operating
• Solenoid or cylinder not responding
• Reject bin door not opening
• Relay output wiring issue

Industries Using Reject and Good Pcs Detector

• Automobile component manufacturers
• Sheet metal component manufacturers
• Press shop production units
• Assembly line manufacturers
• SPM machine builders
• Fixture and jig manufacturers
• Machining industries
• Rubber and plastic component manufacturers
• Electrical component manufacturers
• Packaging industries
• Quality-control equipment suppliers
• Industrial automation companies

Related Products and Machine Control Devices

1. Electronic Control Devices – Customized embedded control systems for industrial machines.
2. Machine Monitoring Systems – Production counting, runtime and machine-status monitoring.
3. Industrial Control Panels – Customized panels for machine control and automation.
4. Relay Output Controllers – Digital instruments with relay output for industrial control.
5. RS485 Modbus Instruments – Digital communication instruments for PLC and SCADA systems.

7 Powerful Benefits of Reject and Good Pcs Detector

• Works like electronic Go/No-Go gauge
• Improves poka-yoke and mistake-proofing
• Detects good and bad parts using sensors and switches
• Can check height, depth, level, angle and inclination
• Alarm output for reject part condition
• Relay output for solenoid, cylinder or reject-bin door
• Reduces rejection, rework and wrong-part dispatch

FAQs About Reject and Good Pcs Detector

What is Reject and Good Pcs Detector?

Reject and Good Pcs Detector is an electronic inspection device used to detect good and bad parts using sensors, switches and poka-yoke logic.

Is it similar to Go/No-Go gauge?

Yes, it works like an electronic Go/No-Go gauge by checking whether the part satisfies the required sensor conditions.

What can this device check?

It can check part presence, position, height, depth, level, angle, inclination, orientation, hole presence and assembly condition.

Which sensors can be used?

Proximity sensors, photo sensors, limit switches, micro switches, reed switches, LVDT sensors, angle sensors and custom probes can be used according to application.

What happens when a bad part is detected?

The device raises an alarm and operates relay output for rejection, machine stop, solenoid operation or reject-bin door opening.

Can relay output operate a solenoid valve?

Yes, relay output can be used to operate a solenoid valve directly or through an interposing relay according to load requirement.

Can it operate a pneumatic cylinder?

Yes, the relay can operate a solenoid valve that controls a pneumatic cylinder for reject pushing or direction changing.

Can it open a reject bin door?

Yes, the relay output can be used to open a reject bin door through solenoid, cylinder or actuator system.

Can it check angle in degree?

Yes, angle or inclination can be checked using a suitable angle sensor or customized fixture-based sensor arrangement.

Can the logic be customized?

Yes, input logic, good/reject logic, relay action, alarm timing and machine interlock can be customized according to the component and machine requirement.

Can it be connected to PLC?

Yes, good, reject or fault output can be connected to PLC input or machine control panel according to wiring design.

Do you supply throughout India?

Yes, UMA Industries supplies reject and good pcs detector systems, poka-yoke controllers, electronic control devices and customized automation instruments throughout India.

External Technical References

• Poka-Yoke Technical Reference
• Go/No-Go Gauge Reference
• Sensor Technical Reference

Business Partner and Dealer Opportunity

Machine manufacturers, SPM builders, assembly-line manufacturers, fixture makers, control-panel builders, automation companies, machine-retrofitting companies and industrial-equipment dealers may contact UMA Industries for business cooperation involving reject and good pcs detector systems, poka-yoke controllers, electronic control devices and customized industrial automation solutions.

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5. MCS Facebook Page – Product news and updates.
6. Robotech Learning Channel – Technical tutorials and product videos.

Buy Reject and Good Pcs Detector

Contact UMA Industries for sensor selection, fixture logic, relay output configuration, solenoid/cylinder interface and customized machine-control solutions. We supply Reject and Good Pcs Detector, poka-yoke systems, Go/No-Go electronic checking devices and industrial automation products throughout India.

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