Self Drilling Screw Making Machine

Equipped with advanced PLC intelligent control system and high-precision indexing positioning mechanism, this machine features stable operation, high molding accuracy and strong specification compatibility. It can stably produce standard self-drilling screws used in construction, metal fastening, electrical appliances, furniture and automotive industries. Built-in online fault monitoring and automatic lubrication system greatly reduce manual operation intervention and equipment failure rate, supporting 24-hour continuous batch production and effectively improving enterprise production efficiency.

Core Technical Parameters

Self Drilling Screw Making Machine supports multi-specification screw production with precise and stable parameters, covering mainstream self-drilling screw models on the market, meeting customized production demands of different customers:

Machine Structure & Core Functions

Adopting modular integrated industrial design, each functional module operates independently and cooperates efficiently, with reasonable structural layout, strong wear resistance and long service life:

1. Automatic Wire Feeding & Straightening Module

Fitted with high-precision alloy straightening rollers, it can automatically straighten coiled steel wires to eliminate raw material bending deviation. It supports uninterrupted automatic wire feeding, ensures consistent wire feeding accuracy, and avoids screw deformation and defective products caused by unqualified raw material straightness.

2. Secondary Cold Forging Heading Module

Adopts two-time cold forging molding technology to complete preliminary forging and precise shaping of screw heads at one time. The fixed and movable dies are made of high-hardness wear-resistant alloy steel, which can withstand high-pressure forging. The formed screw head is smooth and burr-free with uniform specification, meeting international standard fastener requirements.

3. Precision Drill Point Forming Module (Core Function)

As the core component for self-drilling screw production, it adopts precision indexing positioning technology to process standard drill tip structures accurately. The processed screw drill points have smooth cutting edges, fast drilling speed, no cracking and no burrs, ensuring excellent drilling and penetration performance of finished screws in actual use.

4. High-Precision Thread Rolling Module

Uses 1/2 staggered pitch thread rolling plate design. The fixed plate is stationary while the movable plate moves linearly and stably, realizing uniform plastic deformation of the screw surface. The rolled threads have standard tooth shape, precise pitch and strong fastening performance, with high product qualification rate.

5. Intelligent Detection & Protection System

Equipped with intuitive touch screen man-machine interface, parameters can be adjusted freely and quickly. The built-in intelligent monitoring system can automatically identify material shortage, wire feeding deviation, mold abnormality and other faults, display fault codes in real time, and trigger automatic alarm and shutdown protection to avoid equipment damage and production loss.

6. Timing Quantitative Lubrication System

The automatic lubrication system regularly and quantitatively supplies oil to gears, bearings, molds and other vulnerable parts, reduces mechanical friction loss, avoids manual lubrication omission and uneven oil supply, effectively reduces equipment wear and extends the overall service life of Self Drilling Screw Making Machine.

Standard Operation Process

1. Pre-Production Preparation

Check the fastening degree of all machine parts, confirm the mold and thread rolling plate are installed in place without damage, and clean foreign matters in the operating area.

Check the lubricating oil level to ensure it reaches the standard range, and start the pre-lubrication procedure for transmission and molding components.

Match qualified steel wires according to production specifications, install the wire coil on the feeding frame, and adjust the gap of straightening rollers according to the wire diameter.

Turn on the power supply, set production speed, screw length and molding parameters via the touch screen, and save the parameters for standby.

2. Debugging & Mass Production

Start the jog mode for 3-5 minutes of no-load test run to check for abnormal noise and vibration of the machine.

Produce 5-10 trial screws, inspect the size, drill point and thread quality, and adjust parameters timely if defects exist.

After the trial products are qualified, switch to automatic continuous production mode to realize unattended batch production.

Regularly monitor product quality and machine operation status during production to ensure stable production.

3. Standard Shutdown Operation

Normal Shutdown: Stop the feeding system first, wait for all workpieces in the machine to be processed and discharged completely, then turn off the operation switch and cut off power and air sources.

Frequently Asked Questions

Q1: What is the difference between this Self Drilling Screw Making Machine and a single-function drill point forming machine?

A: A single-function drill point forming machine only processes pre-formed screw blanks into finished drill points, requiring separate heading and thread rolling equipment upstream and downstream. Our Self Drilling Screw Making Machine integrates wire feeding, straightening, heading forming, drill point forming, and thread rolling into one continuous process---delivering finished screws directly from raw wire coils. This eliminates material handling between separate machines, reduces floor space by 40--50%, and minimizes quality variations caused by multiple transfers.

Q2: Can this machine handle both carbon steel and stainless steel wire materials?

A: Yes. The machine supports carbon steel, stainless steel, and alloy steel wire materials. Stainless steel processing typically requires lower production speeds (40--100 PCS/min in double-click mode) to accommodate higher material hardness and extend tool life. We can provide specific speed recommendations based on your material grade and screw specifications.

Q3: What is the difference between "single-click" and "double-click" production modes?

A: Single-click mode completes one screw per machine cycle, delivering higher output (80--520 PCS/min) and is suitable for standard mass production of smaller-diameter screws. Double-click mode completes two screws per cycle with lower rotational speed (40--150 PCS/min), providing longer dwell time for each forming station---ideal for larger-diameter screws, stainless steel materials, or complex head geometries that require extended forming time.

Q4: How does the built-in thread rolling module compare to a standalone thread rolling machine?

A: Our integrated thread rolling module uses the same 1/2 staggered pitch thread rolling plate technology as standalone machines, delivering equivalent thread precision and tooth profile quality. The key advantage is space-saving and elimination of inter-machine material transfer. However, for factories requiring extremely high thread rolling output or handling multiple specifications simultaneously, we still recommend adding a standalone thread rolling machine as a parallel production line.

Q5: What screw head types can this machine produce?

A: The machine supports a wide range of head types through interchangeable mold sets, including pan head, hex head, flat head, truss head, and custom head configurations. Mold change typically requires 15--30 minutes, and parameter settings for each head type can be saved in the PLC memory system for quick future recall.