Short Resin finer for Tamura wave soldering machine

The TAMURA Short Resin Wave Solder PCB Conveyor Finger is a mechanical replacement component used in compatible Tamura wave soldering machine conveyor systems. Installed along the PCB transport chain or conveyor rail, this short-type resin finger contacts the edge of the printed circuit board and helps maintain stable board positioning throughout the wave soldering process.

PCB conveyor stability is important during flux application, preheating, solder wave contact, cooling, and unloading. Multiple conveyor fingers work together to hold and guide the PCB while allowing the underside of the board to remain accessible to the soldering process.

The Short Resin Finger is particularly suitable for replacement of damaged, worn, cracked, deformed, contaminated, or missing conveyor fingers. Maintaining all conveyor fingers at consistent positions helps reduce board shaking, uneven support, transport resistance, and accidental PCB movement.

For electronics factories using Tamura wave solder equipment, this component is a practical maintenance spare part for conveyor repair and preventive maintenance.

Key Product Information

Cause – Why Short Resin Fingers Need Replacement

A wave solder conveyor operates repeatedly throughout daily PCB production.

Each conveyor finger directly contacts the edges of circuit boards passing through the machine. During operation, the finger is also exposed to heat, flux residue, vibration, repeated mechanical loading, and production contamination.

These conditions gradually affect the finger surface and mechanical condition.

Common Causes of Wear

A single worn finger may not stop production immediately.

However, if several fingers have different heights or contact positions, the PCB may become unstable when passing through the soldering machine.

Regular inspection is therefore recommended before conveyor problems develop into production interruptions.

Solution – Restore Stable PCB Conveyor Support

Replacing damaged components with the correct TAMURA Short Resin Conveyor Finger helps restore the mechanical condition of the PCB transport system.

The finger provides a controlled PCB edge contact point and works together with neighboring fingers to maintain board stability.

Replacement Benefits

• Helps maintain stable PCB transportation.
• Supports consistent PCB edge positioning.
• Reduces movement caused by worn conveyor fingers.
• Helps prevent uneven board support.
• Supports smooth movement through the soldering zone.
• Suitable for routine wave solder maintenance.
• Allows individual damaged fingers to be replaced.
• Helps reduce conveyor-related production downtime.

For factories operating continuous wave solder lines, keeping replacement fingers in spare inventory can make maintenance faster and more predictable.

Specifications

Application

The TAMURA Short Resin Finger is intended for PCB transportation in compatible Tamura wave solder conveyor assemblies.

Wave soldering is widely used for through-hole component assembly and mixed-technology PCBs where boards must move continuously through several controlled process sections.

Typical Applications

Typical Industries

• Automotive electronics.
• Industrial control electronics.
• Consumer electronics.
• Power supply manufacturing.
• Communication equipment.
• Home appliance electronics.
• LED and lighting products.
• EMS contract manufacturing.
• Electronic equipment assembly.

The finger should be selected according to the actual conveyor configuration rather than only the external appearance of the wave solder machine.

How It Works

The conveyor system carries PCBs through the wave soldering machine at a controlled speed and position.

The Short Resin Conveyor Finger functions as one of the physical support points along the PCB edge.

1. PCB Loading

The circuit board enters the wave solder conveyor from upstream equipment or the machine loading section.

Resin fingers installed on the conveyor contact and support the PCB edges.

2. PCB Positioning

Multiple conveyor fingers work together to maintain a consistent board position.

Correct finger alignment helps reduce unnecessary PCB movement.

3. Flux Application

The PCB travels through the fluxing section.

The fingers support the edges while keeping the underside of the PCB available for the process.

4. Preheating

The conveyor transports the PCB through the preheating zone.

Consistent board support helps maintain smooth movement through this thermal section.

5. Wave Soldering

The PCB passes over the solder wave.

Stable conveyor positioning is important because the board must move through the soldering zone without excessive shaking or unexpected displacement.

6. Cooling and Unloading

After soldering, the board continues through cooling and toward the unloading section.

The conveyor fingers continue supporting the PCB until it exits the machine.

Why the Short Finger Design Matters

Wave soldering machines can use different conveyor finger geometries depending on their rail and chain configurations.

A Short Resin Finger should therefore be treated as a specific structural type rather than assumed to be interchangeable with longer conveyor fingers.

Different finger designs may vary in:

• Overall length.
• PCB contact position.
• Mounting structure.
• Finger profile.
• Installation orientation.
• Conveyor chain connection.
• Board edge gripping geometry.

For this reason, the existing conveyor finger should always be compared with the replacement before ordering.

Using the correct structural type helps maintain proper conveyor clearance and PCB support.

Problems Caused by Worn Conveyor Fingers

Even though a resin finger is a small mechanical component, its condition can directly affect PCB transportation.

Typical Warning Signs

• PCB shakes while moving through the conveyor.
• Board edges are not supported evenly.
• PCB position changes during transportation.
• One finger sits differently from neighboring fingers.
• Visible cracks appear on the resin body.
• Finger surface becomes heavily contaminated.
• Conveyor produces unusual mechanical noise.
• PCB catches during loading or unloading.
• Finger mounting becomes loose.
• Board height becomes inconsistent.

When these symptoms occur, technicians should inspect not only the finger but also the conveyor chain, rail alignment, and neighboring components.

Resin Finger Maintenance Advantages

Resin fingers provide a replaceable PCB contact component within the wave solder conveyor.

This allows technicians to replace individual worn components rather than changing the complete transport mechanism.

Maintenance Features

The actual service life depends on machine operating hours, temperature, flux conditions, PCB characteristics, cleaning frequency, and conveyor alignment.

How To Choose the Correct TAMURA Short Resin Finger

Step 1 – Confirm TAMURA Application

Verify that the conveyor finger is intended for a Tamura wave soldering machine.

Step 2 – Confirm Short Type

Make sure the existing part uses the same short finger configuration.

Do not automatically replace a long or differently shaped finger with the short version.

Step 3 – Confirm Resin Material

Check that the required replacement is a:

Resin Conveyor Finger

Wave soldering equipment may use different finger materials depending on the conveyor design.

Step 4 – Compare the Physical Structure

Check the existing finger for:

• Overall shape.
• Finger length.
• Mounting profile.
• PCB contact position.
• Installation orientation.
• Connection to the conveyor chain.

Step 5 – Provide Photos for Confirmation

If no part number is available, provide photos showing:

• Complete existing finger.
• Front view.
• Side view.
• Mounting section.
• Finger installed on the conveyor.
• Adjacent conveyor components.

A physical sample or dimensional drawing can also be useful when exact identification is required.

Installation Recommendations

Before replacing the conveyor finger, stop the machine according to the equipment maintenance procedure.

Ensure that the conveyor and heated process sections are in a safe condition before servicing.

Inspection Checklist

After replacement, compare the new short resin finger with adjacent fingers.

The new component should operate freely without contacting unrelated mechanical parts.

Test PCB transportation before returning the machine to normal production.

Preventive Maintenance Recommendations

Regular maintenance helps identify conveyor finger deterioration before it affects board transport.

Recommended practices include:

• Inspect fingers for cracks and excessive wear.
• Clean accumulated flux residue.
• Compare adjacent finger positions.
• Inspect conveyor chain movement.
• Check the rail for correct alignment.
• Inspect mounting points for looseness.
• Observe PCB movement during production.
• Replace damaged fingers promptly.

If one finger has failed because of extended service, inspect neighboring fingers at the same time because they may have experienced similar operating conditions.

Short Resin Finger vs. Other Conveyor Fingers

Not every wave solder conveyor finger is interchangeable.

Material alone is not enough to identify compatibility.

The finger profile, mounting structure, PCB contact geometry, and conveyor configuration should all be checked before purchasing.

Why Keep Short Resin Fingers in Spare Inventory

Wave solder conveyors contain multiple fingers, and individual pieces may become damaged during production or maintenance.

Keeping suitable spare fingers available provides several advantages:

• Faster replacement when damage occurs.
• Less emergency sourcing.
• Easier preventive maintenance.
• Reduced risk of extended machine stoppage.
• Convenient maintenance during scheduled shutdowns.
• Better preparation for high-volume PCB production.

For factories operating more than one wave solder line, labeling different finger types separately can help prevent incorrect installation.

FAQ

1. What is the TAMURA Short Resin Finger used for?

It is used in compatible Tamura wave soldering machine conveyor systems to support and guide PCB edges while boards move through fluxing, preheating, wave soldering, cooling, and unloading processes.

2. Is this finger made of resin?

Yes. This product is specified as a Short Resin Conveyor Finger. Wave solder systems may also use titanium or other finger materials, so the material and structural type should be confirmed before ordering.

3. Can a short resin finger replace any Tamura conveyor finger?

No. Different Tamura conveyor configurations may use different finger shapes and mounting structures. The short resin type should be matched against the existing component, conveyor assembly, photo, sample, or dimensional information.

4. When should the conveyor finger be replaced?

Replace the finger when it is cracked, deformed, worn, loose, heavily contaminated, or unable to support the PCB edge consistently. Inspect neighboring fingers and conveyor components at the same time.

5. What information is needed for a quotation?

Please provide the Tamura machine information, short resin finger requirement, quantity, existing finger photos, and dimensions or sample information when available. This helps confirm the correct replacement before quotation.

Contact Us

Need Short Resin Conveyor Fingers for TAMURA Wave Soldering Machines?

Send us your machine information, required quantity, finger photos, and dimensions when available for product confirmation and quotation.

We supply wave solder conveyor spare parts for electronics factories, EMS manufacturers, maintenance teams, and equipment refurbishment projects.

Different resin and conveyor finger types can be combined in one purchasing inquiry.

Send your inquiry today for price, availability, quantity options, and shipping information.