Automatic tapping · Case study

Four-Spindle M4 & M5 Automatic Tapping

Four tapping spindles process two small parts together. Each part receives one M4 and one M5 thread, with automatic feeding, cooling and discharge. Production and commissioning are complete, and the machine is ready for shipment.

Two parts together
M4 + M5 per part
Dual-servo drive

Discuss Your Part Watch the automatic process

Approx. US$8,633 EXW · View project price

Completed four-spindle servo tapping machine with touchscreen, automatic feeding and finished-part collection. — The completed machine after workshop commissioning, ready for shipment.

2 partsProcessed in each cycle

2 × M4 + 2 × M5Four threads tapped simultaneously

21 × 14.6 × 7 mmSpecified workpiece dimensions

The customer's task

Complete both threads in one operation

The customer wanted fully automatic production with several taps working together, reducing manual handling and labor requirements.

Small metal workpieces showing the raised and flat sections and the threaded-hole layout. — Each workpiece requires one M4 thread and one M5 thread.

A two-part fixture for four tapping spindles

The supplied part measures 21 × 14.6 × 7 mm. The machine positions two parts at the working station so that two M4 taps and two M5 taps can cut all four threads in the same operation.

A vibratory bowl and linear feeder supply the parts. Pneumatic transfer, servo tapping, cooling and discharge then repeat under PLC control. An operator replenishes the feeder as needed.

This arrangement addresses the customer's handling and multi-hole processing requirements. The photographs and video show the completed equipment before shipment.

Workshop video

Follow the automatic feeding and tapping process

See the part feed, four-spindle tapping station and finished-part discharge at original operating speed.

Automatic M4 and M5 tapping process — 36-second workshop edit at original speed: automatic feeding, simultaneous M4 and M5 tapping with coolant, and pneumatic discharge.

Operating sequence

From bowl feeding to finished parts

Feed the parts
A vibratory bowl supplies the linear feeder. The operator replenishes the bowl as needed.
Position a pair
A pneumatic mechanism transfers the parts into the dedicated fixture for two-part processing.
Tap four holes together
Two M4 taps and two M5 taps work simultaneously, with servo-driven rotation and feed and automatic cooling.
Discharge and repeat
The pneumatic discharge mechanism releases the finished parts into the collection area, ready for the next pair.

Machine configuration

Servo rotation and feed, coordinated by PLC

A 1.5 kW servo motor drives the spindle system, with a separate 0.75 kW servo motor for feed. The touchscreen gives the operator access to parameter adjustment.

The fixture, feeding path and four-spindle arrangement are built around the supplied part. For a similar project, we review your part geometry, material, thread requirements and output target together.

Specifications supplied for this project
Threads in each part	1 × M4 + 1 × M5
Simultaneous tapping	2 parts; 2 × M4 + 2 × M5
Workpiece dimensions	21 × 14.6 × 7 mm
Feeding	Vibratory bowl, linear feeder and pneumatic transfer
Spindle motor	1.5 kW servo motor
Feed motor	0.75 kW servo motor
Cooling	Automatic coolant supply
Discharge	Pneumatic push mechanism
Control system	PLC with touchscreen
Electrical supply	380 V
Machine dimensions	Approximately 1400 × 800 × 1800 mm
Machine weight	Approximately 250 kg

Equipment and process details

Inspect the machine from the feeder to the tooling

Selected workshop photographs show distinct views of the overall machine and its working components. Open any photograph at full size.

Opposite side of the tapping machine showing the inclined head, bowl feeder and control panel — Opposite-side overview
Opposite-side view of the machine and its control panel.

Feeding-side view of the tapping machine with its bowl feeder and twin feed tracks — Feeding layout
The machine bowl feeder and feed tracks viewed from the feeding side.

Vibratory bowl containing workpieces with parts arranged along its spiral track — Vibratory bowl feeder
Workpieces in the vibratory bowl and along the spiral orientation track.

Tapping station with tool holders, workpiece fixtures and coolant nozzles — Tapping station
Close view of the tapping station and its coolant nozzles.

Twin pneumatic slides beside the two feed tracks and tapping fixtures — Pneumatic transfer
Pneumatic transfer mechanisms beside the feed tracks.

Four taps positioned above the two workpiece fixtures — Four-spindle tooling
Four-spindle tooling arranged over the two workpiece fixtures.

Close view of spindle couplings and spring assemblies inside the tapping head — Spindle couplings
Couplings and spring assemblies inside the tapping head.

Two workpiece fixtures below four taps with nearby position sensors — Two-part fixture
Closer view of the two fixtures and adjacent sensors.

Discharge-side view of the four taps, fixtures, feed tracks and metal chutes — Discharge-side detail
The tapping station and discharge chutes viewed from the collection side.

Internal drive shafts and couplings beneath the tapping-head plate — Spindle drive
Internal spindle-drive shafts and couplings.

Project price reference

EXW price for the configuration shown

The price relates to this four-spindle machine and its specified workpiece. If your part, feed arrangement or processing requirements differ, we will review the configuration and provide a quotation.

Production and commissioning of the photographed machine are complete. The quoted lead time below is measured from receipt of the deposit.

EXW
Project reference

Approx. US$8,633

Quoted lead time: 30–32 days after receipt of the deposit.

We confirm the scope, price and lead time for your order in the quotation.

Request a Quote

Plan your application

Need two thread sizes tapped automatically?

A drawing is useful, but clear part photos and a description are enough to start the conversation.

Discuss Your Part

Useful details to share

Part drawings or clear photographs and material
M4/M5 or other thread sizes, pitch and required depth
Part variants, orientation and feeding requirements
Required output and thread inspection criteria

The selected machine or solution will be included in your inquiry.