Higher Production Efficiency
0 %
Material Savings
3- 0 %
Low Noise Operation
< 0 dB
Months ROI Period
0 -24
Multi wire saw

Multi Wire Saw for Semiconductor Precision Cutting

Multi wire saws are essential for the precision slicingrequired in semiconductor manufacturing. Donghe ScienceMulti Wire Saws are known for the efficiency and ability toproduce high volumes of wafers with uniform thickness,which is integral in producing high-quality electroniccomponents. Innovations in multi wire saw technology haveallowed for significant advancements in the semiconductorindustry, ensuring that the wafers produced are cut to exactspecifications with minimal material loss.

What is a Multi Wire Saw?

Diamond wire saw cutting machine (also referred to a multi wire slicing machine) is sophisticated a precision cutting equipment that slices materials to obtain thin sheets or wafers. It uses multiple diamond coated wire, and unlike previous cutting methods, this wire cutting technology offers manufacturers unrivaled yield and precision.
The evolution from conventional gang saw cutting and single-blade technologies for multi wire saw machines is remarkable. These machines are capable of performing multiple cuts with diamond wires. They have achieved a new level of production efficiency with the ability to use web parallel wires, which is most often from 16 to 80 wires.
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Superior Precision

Thickness tolerances of ±0.020mm with Total Thickness Variation (TTV) control achieves excellent dimensions in wafer cutting in semiconductor applications.

High Efficiency

Processes numerous slices at the same time, and improve one's throughput by 40-60% as compared to Single-Wire or Gang Saw technologies.

Minimal Kerf Loss

Very thin diamond wire (5.3mm) enables reduction in kerf loss to only 1.5-3mm and enhances the amount of machining admitted by reducing start-up inputs of raw material.

Excellent Surface Quality

The created surfaces produce values below Ra 0.8μm, bringing about the elimination or reduction of any further polish requirements.

How Does a Multi Wire Saw Machine Work?

When trying to obtain the maximum yield of materials, it is useful to optimize the cutting performance of any diamond wire saw cutting machine by understanding how it works. A multi-wire saw machine follows the continuous cutting principle, where several diamond wires move either reciprocally or unidirectionally to cut the workpiece.

Core Working Principle

To cut wire, the machine wraps high-tensile diamond wire around several grooved guide wheels (flywheels) so as to create several parallel cutting paths. The diamond wire then travels at a speed of between 10-20 m/s, with diamond particles embedded in the wire surface performing micro-cutting actions as it removes materials through abrasive action.
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Flywheel/Guide Wheel System

Precision-engineering guide wheels is where several grooved wheels are positioned to guide multiple diamond wires at exactly parallel spacings. The wire pitch determines the thickness of the final slab.

Wire Tension Control System

To ensure that wire tension (which is usually between 20 and 35 N) is maintained, an advanced servo control system applies wire tension so that cuts are straight and there is no breakage of the wire.

Coolant/Slurry System

System for the removal of cut swarf, and wire overheating and cutting fluid lubrication, is integrated with high-pressure systems to furnish fluid at the interface between the wire and material.

Feed Control System

The precise mechanisms allow for control of the advancement speed of the workpiece and optimize the cutting rate as a function of material hardness and condition of the wire.

The Wire Sawing Process: Step By Step

Material Loading &
Placement

Securely mount the stone block, silicon ingot, or any other block on the machine table using epoxy bonding or mechanical clamping.

Thread & Tension
The Wire

After threading the diamond wire through the guide wheel system, it is then tensioned to an appropriate level for the specific material being cut.

Parameter Setting
For Cutting

On the basis of the material's properties and the finish quality desired, operators set cutting speed, wire tension, feed rate, and coolant flow.

Cutting Process
Execution

When the wire moves at high speed, the workpiece is moved into the wire field. The entire cutting process is monitored in real time for uniform quality.

Quality Inspection
& Unloading

The finished slabs are inspected in the thickness for uniformity, surface quality, and linearity before their packaging.

Common Challenges & Our Solutions | Leading Multi-Wire Saw Manufacturer

Having served customers in over 60 countries in the last 30 years, we have identified important problems that multi wire saw operators, stone, and semiconductor processors face. Here’s how our diamond wire saw cutting machines help resolve such problems.

⚠️ Low Operational Efficiency

Production capabilities are limited by cutting speeds that are too slow and long changeover times.

✅ Our Solution

Cutting rate is optimized by our state-of-the-art servo driven systems, achieving rates of 25m² per hour. Downtimes are reduced by 40% because of our proprietary wire change systems.

⚠️ High Kerf Loss

Unprofessionally made cuts reduce profit margins of granite, marble, or silicon.

✅ Our Solution

Our method of wire cutting, which utilizes diamond wires measuring 5.3mm for stone and under 0.1mm for wafers, has Kerr loss reduction of 50% in comparison to competitor methods.

⚠️ Frequent Wire Breakage

Wasted materials, expensive downtimes, and alarming loose wire safety risks.

✅ Our Solution

Real-time monitoring coupled with intelligent wire tension control, decreases wire breakage to 95%. Downtimes are eliminated with our sophisticated auto-stop systems.

⚠️ Unsatisfactory Surface Finish

Secondary processing is necessary because of varied surface thickness, coarse finishes, and waviness.

✅ Our Solution

The achievement of an Ra < 1.0μm surface finish is made possible with our professional guide systems and vibration absorption. The result is a reduction in the need for lapping.

⚠️ Challenging Processes

Higher learning requirements, troubles locating proficient personnel, and continual settings changes.

✅ Our Solution

The easy-to-operate touchscreen HMI has preconfigured recipes for standard materials. We provide complete training and around-the-clock technical assistance.

⚠️ Unreliable After-Sales Support

Delayed technical assistance, slow spare parts availability, and prolonged downtime of machines.

✅ Our Solution

Remote troubleshooting. 48-hour service guarantee and everywhere service coverage with spare part inventories.

Details Of Critical Technical Multi Wire Saw Specifications

Understanding key technical parameters will help ensure you get the right equipment for production when assessing multi wire saw machines. Below are the most important specifications for diamond wire saw cutting machines.
PARAMETERSTONE PROCESSINGSEMICONDUCTORWHY IT MATTERS
Cutting Speed10‑20 m/min15‑25 m/sDirectly impacts production throughput
Wire Tension Control±2N accuracy±0.1N accuracyEnsures straight cuts and prevents breakage
Kerf Loss1.5‑3.0mm0.1‑0.15mmLower kerf = more material yield
Surface Roughness (Ra)0.8‑1.5μm0.3‑0.6μmAffects polishing requirements
TTV (Total Thickness Variation)±0.1mm±5μmCritical for uniformity
Max Block/Ingot Size3200×2000mm300mm diameterDetermines processing capacity
Wire Diameter5.3‑7.3mm0.04‑0.12mmThinner wire = less waste

Application Of The Multi-Wire Saw Across Different Sectors

The multi-wire saw symbolizes flexibility in today's market. From granite block cutting to the slicing of silicon wafers, diamond wire-cutting is far better than older methods.
application of the multi wire saw across different sectors (6)

Granite Slab Cutting

Cutting granite blocks very fast into an even number of slabs with minimal wastage. Diverting toward the countertop and floor sectors.

application of the multi wire saw across different sectors (4)

Marble Block Processing

Very gentle cutting, keeping the pattern of veins undisturbed. Optimum surface texture, which also reduces polishing time by 30%

application of the multi wire saw across different sectors (5)

Quartz Countertop Manufacturing

Exact cutting of engineered stone with constant proportions for kitchen and bathroom applications.

application of the multi wire saw across different sectors (3)

Silicon Wafer Slicing

Cutting the monocrystalline and polycrystalline ingots of silicon with a high degree of accuracy for both semiconductor and photovoltaic uses.

application of the multi wire saw across different sectors (2)

SiC Wafer Cutting

Tailored cutting solutions for silicon carbide, a prime material for power electronics and electric vehicle components.

application of the multi wire saw across different sectors (1)

Sapphire Wafer Production

Precise cutting of the sapphire crystals for the LED substrates and optical functions.

How to Choose the Right Diamond Multi Wire Saw Machine

Choosing the right multi wire saw machine involves understanding your application, your production expectations, and analyzing the machine’s total cost of ownership in relation to these expectations. To ease the purchasing process, you can use the following steps.
1

Define Your Application &
Material

Understand the primary materials you are going to be cutting (i.e. granite, marble, silicon, SiC, etc.). Different materials have different wire requirements and their cutting parameters vary.

2

Evaluate Production
Requirements

Estimate the monthly and daily output that you are going to need. This, along with maximum block dimensions and the slab thickness you are targeting, will help determine wire count and machine size.

3

Compare Technical
Specifications

Look at the surface quality, cutting speed, and kerf loss tolerance. Get cutting samples from the supplier and make sure this sample is of your materials.

4

Assess Manufacturer
Capabilities

Look at the supplier’s years of experience, certifications (i.e. ISO, CE), and customer reviews. Then, check their after‑sales service chops, especially in your location.

5

Calculate Total Cost Of
Ownership (TCO)

Analyze equipment costs, installation, diamond wire and other consumables, maintenance, cost of energy required to the machine running, and costs that will be incurred due to machine downtime.

Frequently Asked Questions (FAQs)

Q: What is a multi-wire saw machine, and how does it differ from a single-wire saw?
A: A multi wire saw machine is designed to simultaneously cut blocks and slabs of stone using several diamond wire strands. This is unlike a single-wire or quarry wire saw that only makes one kerf at a time. A multi-wire cutting machine does several parallel cuts by spacing several wires, thus improving granite and marble precision, reducing handling, and optimizing stone processing at the slab and block stage.
Q: Can a multi-wire cutting machine process large slabs of granite and marble efficiently?
A: Certainly. Multi-wire saws and multi-wire cutting machines are engineered specifically for the large-scale processing of slabs and blocks of granite and marble. These machines, utilizing several wires and adjustable wire spacing, can do single or near-single-pass production of multiple uniform slabs from a stone block, significantly reducing waste and improving efficiency, which is advantageous for quarry and stone processing operations.
Q: In what way can multi wire saws help prevent waste and boost yield in the stone industry?
A: In comparison to cutting machines which make thicker cuts, multi wire saws make more uniform cuts and can create cuts with thinner kerfs. This means there is less loss. By optimizing wire spacing and picking the right type of diamond wire for the stone, stone processors can increase the yield of usable stone slabs to be gained from a block. This leads to less waste, reduction in the costs and improvements to the economics of stone cutting and quarrying.
Q: What technology innovations for multi wire saws should quarry and stone companies consider when upgrading their equipment?
A: Innovations for modular multi wire saws with diamond wire, advanced diamond wire, automated tension controls, CNC for auto adjust, improved systems for cooling/abrasive removal, and integrated CNC for automated adjustments. R&D improvements for low operating costs, increased machine speed, consistent quality for granite and marble processing, and reduced operational costs.
Q: What are the distinctions between multi-wire saws and gang saws?
A: Multi-wire saws have finer saws than gang saws and are more precise. Newer gang saws use wires coated with diamond dust to achieve a 40 percent increase in yields and faster cut times. They also reduce kerf loss with a 2 to 3 millimeter loss as compared to the 5 to 8 millimeter loss from a gang saw. Multi-wire saws also use a more environmentally friendly water-based coolant which reduces noise pollution.
Q: How long will the diamond wire last on a multi-wire saw?
A: The wire is expected to last 80 to 150 hours based on the hardness of the wire, the quality of the wire, and the foam used on the wire. For instance, a saw is expected to last 80 to 100 hours when cutting granite and 120 to 150 hours when cutting marble. If the wire is properly tensioned and is cooled, it can last 20 to 30 percent longer. The best time to replace the wire will be based on monitoring the wear patterns of the wire.
Q: What are the best materials to use with a multi-wire saw?
A: Multi-wire saws are designed optimally to cut a variety of natural stones including granite, marble, and limestone; engineered materials such as quartz and terrazzo; semiconductors like silicon, silicon carbide, and sapphire; and technical materials including optical glass, ceramics, and graphite. Each type of material will have a specific cutting parameter that will need to be used to optimize the results.
Q: What is the ROI of Multi Wire Saws?
A: ROI for most factories is within 18-24 months, which is achievable through the following combined effects: 40% production increase, 3-5% savings in materials because of less kerf loss, lower labor cost due to automation, less need for downstream processing, and less energy consumed per unit produced. To receive a detailed ROI analysis specific to your operation, please reach out to our team.
Q: What maintenance does Multi Wire Saw require?
A: With a Multi Wire Saw, maintenance is the following: daily checks of the coolant system and filters, wire guides need to be inspected and lubricated weekly, every month the tensioning system should be calibrated, and every quarter the drive belts and bearings need to be inspected. Preventive maintenance is said to lessen the risk of unplanned downtime by 80%. Our maintenance guide will offer you clarity on maintenance and more schedules in detail.