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Product Overview
220V LD100 Valve Grinding Machine - Precision Valve
Grinder for Automotive Repair, Small Batch Processing
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The LD100 Valve Grinding Machine is a
versatile and robust solution for precision valve refurbishment
across a wide range of engines. Ideal for automotive repair
shops, motorcycle mechanics, and agricultural machinery
maintenance, it expertly handles everything from passenger cars
and trucks to tractors and large generator sets.
Engineered for reliability in both one-off repairs and
small-batch operations, the LD100 ensures consistent,
professional-grade results. Its user-friendly design features
making complex valve resurfacing tasks straightforward and
efficient.
Whether you're a professional technician seeking to enhance your
workshop's capabilities or an experienced DIY enthusiast
tackling engine overhauls, the LD100 is built to deliver the
accuracy and durability you demand. |
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Model: |
LD-100B |
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Voltage: |
AC220V/50-60Hz |
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Phase
number: |
1 |
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Valve Stem Diameter: |
0.14"-0.79"(3.5mm-20mm) |
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Valve
Head Diameter: |
0.47"-3.94"(12mm-100mm) |
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Valve Length: |
2.76"-17.7"(70mm-450mm) |
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Grinding Angle Range: |
10°-57° |
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Main Grinding Wheel Diameter: |
7.87"(200mm) |
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Dish Wheel Diameter: |
3.94"(100mm) |
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Main Grinding Wheel Width: |
0.59"(15mm) |
| Grinding
Wheel Travel: |
3.54"(90mm) |
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Spindle Motor Power: |
1HP(750W) |
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Valve Drive Motor Power: |
180W |
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Coolant Motor Power: |
100W |
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Valve Feed Stroke: |
3.54"(90mm) |
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Valve Drive Motor
Speed: |
120-750rpm |
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Grinding Wheel Speed: |
3600RPM |
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Air Supply Pressure: |
0.6MPa(6bar) |
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Coolant
Tank Capacity: |
1.06usgal(4L) |
| Package size: |
41.3"*37.0"*48.8"(106CM*94CM*124CM) |
| Net weight/Gross weight: |
593.0LBS(269KG)/696.7LBS(316KG) |
Warning:
Always prioritize safety and proper operation to prevent
personal injury and damage to the equipment.
1. Safety First
(1) Eye Protection is Mandatory: Always wear certified safety
goggles or a face shield during operation. Grinding produces
high-speed particles that can cause serious eye injury.
(2) Secure Loose Items: Do not wear gloves, ties, loose
clothing, or jewelry that could become entangled in the moving
parts of the machine.
(3) Hand Safety: Keep hands away from the grinding wheel while
the machine is in operation. Always ensure the wheel has
completely stopped before making adjustments or changing parts.
(4) Work in a Well-Ventilated Area: The grinding process may
generate fine dust. It is advisable to use the machine with
adequate ventilation or a dust extraction system.
2. Installation & Setup
(1) Power Supply Verification: Before connecting to power,
ensure your local voltage and frequency match the machine's
requirements. Using an incorrect power supply will damage the
motor.
(2) Secure Mounting: Mount the machine on a sturdy, stable, and
level workbench to prevent vibration and movement during
operation.
(3) Air Supply Requirements: If the machine is equipped with
pneumatic components, ensure your air compressor provides clean,
dry air at the correct pressure (0.6 MPa) as specified in the
manual.
3. Operation & Usage
(1) Inspect Before Use: Always inspect the grinding wheel for
cracks or damage before installation. Never use a damaged or
cracked wheel., as it can break apart at high speed.
(2) Proper Wheel Dressing: Regularly dress the grinding wheel
using the diamond dresser to maintain its cutting efficiency and
prevent glazing. A poorly dressed wheel can cause overheating
and damage the valve surface.
(3) Correct Workpiece Clamping: Always ensure the valve is
securely and correctly clamped in the drive mechanism before
starting the grinding process. A loose valve can be thrown from
the machine.
(4) Avoid Overloading: Do not force the valve into the grinding
wheel with excessive pressure. Allow the grinder to remove
material at its own pace. Overloading can stall the motor,
damage the wheel, and produce poor surface finishes.
(5) Use Coolant: Always use the recommended coolant during
grinding. This prevents the valve from overheating (which can
anneal and weaken the steel), improves surface finish, and
extends the life of the grinding wheel.
4. Maintenance & Servicing
(1) Power Disconnection: Always disconnect the machine from the
power source before performing any maintenance, cleaning, or
wheel changes.
(2) Regular Cleaning: Keep the machine clean. Wipe down surfaces
after use and regularly clean the coolant tank to prevent chip
buildup and corrosion.
(3) Lubrication: Periodically lubricate all moving parts (e.g.,
guide rails, screws) as instructed in the manual to ensure
smooth operation and accuracy.
(4) Professional Repair: This machine contains precision
components. Do not attempt to disassemble or repair the main
motor or spindle yourself. Contact a qualified technician for
service. |
| Product Features & Advantages |
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Well-Designed & Intuitive Control
The control panel boasts a logical layout with clearly grouped
functions. All switches (Drive, Grinding Wheel, Oil Pump, Main
Power) and indicator lights are centralized for one-touch
operation. The easily accessible emergency stop switch ensures
safety, while the dedicated cylinder clamp switch and variable
speed control knob work in tandem to enable efficient valve
clamping and precise speed adjustment, significantly boosting
productivity. |
Automated Centralized Lubrication
This system features an efficient centralized lubrication unit
that automatically delivers oil from a main pump to four
critical friction points. This ensures core moving parts like
guide rails and lead screws are always optimally lubricated to
minimize wear. It eliminates the need for tedious manual
greasing, significantly extends the machine's service life, and
guarantees consistent machining accuracy and reliability.
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Flexible & Efficient Directed Cooling
The machine is equipped with an independent coolant pump and a
magnetic-base, multi-directional spray pipe. This allows for
360-degree positioning to precisely direct coolant flow to the
exact point of contact between the wheel and workpiece. This
targeted design effectively prevents workpiece overheating
(annealing), eliminates wheel clogging, significantly improves
surface finish quality, and extends the grinding wheel's service
life. |
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Versatile & Precision Grinding Station
This integrated station combines a dish-type grinding wheel, a
precision graduated handwheel, and dedicated fixtures for a
complete grinding solution. The dish wheel is designed for
efficient valve face grinding. The high-precision handwheel
allows for micron-level(20um) feed control to accurately manage
material removal. Exclusive fixtures enable quick switching
between valve tip grinding and chamfering without changing
modules, significantly boosting precision and operational
efficiency. |
Rigid Precision Guidance System
The machine features two long, hardened and ground slide rails
that form a highly rigid foundation. The two independent
workpiece clamping cylinders mounted on them offer a long stroke
and smooth operation, effectively suppressing machining
vibrations. This dual-rail design ensures exceptional stability
of the moving parts under heavy grinding loads, providing a
solid guarantee for high-precision machining. |
High-Precision Diamond Dressing Tool
The machine includes a professional diamond dresser that quickly
and accurately restores the grinding wheel's profile and cutting
sharpness. This key accessory prevents workpiece burns and
inaccuracies caused by a dull wheel, guaranteeing the valve
grinding ring always achieves the optimal geometry and surface
finish. It is essential for maintaining consistent, high-quality
results over the long term. |
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High-Precision Valve Tip Cone Grinding
The machine features a dedicated valve tip cone grinding setup,
utilizing a precision adjustment handwheel to control grinding
depth. Combined with the rigid dual slide rails and workpiece
clamping cylinders, it ensures vibration-free operation during
regrinding. This function quickly restores the standard geometry
and sealing performance of the valve tip cone, enhancing engine
valve sealing efficiency and preventing power loss caused by
wear. |
Ergonomic & Precision Feed Design
The grinding wheel feed handle features an ergonomic shape for
comfortable grip and low-effort operation. Driven by a precision
gear or lead screw mechanism, it enables smooth, micron-level
fine feed of the wheel, effectively preventing impact or
over-grinding during operation. This allows the operator to
accurately control the grinding amount by hand, ensuring
consistent processing results and a superior surface finish on
valve faces. |
Wide-Range Precision Angle Adjustment
Features a calibrated scale with a wide 10°-57° adjustment
range, covering the valve angle specifications for the vast
majority of global engine models. The precise graduations and a
secure locking mechanism enable fast, accurate angle setting and
repeatable positioning, eliminating the need for repeated
calibration. This design significantly improves efficiency when
switching between different valve types and ensures every valve
is ground to the exact required face angle, guaranteeing optimal
engine sealing performance. |
Wide Compatibility: Perfectly
reface valves for cars, motorcycles, trucks, agricultural
machinery, and industrial generators.
Precision Engineering: Achieve accurate valve seat angles
and a perfect seal for optimal engine performance and
compression.
Ideal for Shops & Hobbyists: Effortlessly handle both
single valve jobs and small production runs with consistent,
reliable results.
Robust Construction: Built with durable materials to
withstand the demands of a professional workshop.
User-Friendly Operation: Designed for simplicity without
sacrificing precision, reducing operation time and labor costs. |
1. Adjusting the Machine's Grinding
Angle:
◆After determining the valve's angle, loosen the machine's angle
lock handle.
◆Then, adjust the scale to match the valve's angle.
2. Adjusting the Valve Positioning Device:
◆Select the drive rubber block according to the diameter of the
valve head.
◆Install the block into the drive holder.
◆Turn on the V-block cylinder switch.
◆Adjust the moving bracket cartridge and cylinder top post based
on the valve stem's length.
◆Adjust the drive center handwheel to align the drive rubber
block coaxially with the valve.
◆Turn off the cylinder switch. The valve is now securely
installed.
3. Grinding the Valve Working Ring:
◆Left hand: Hold the table travel handwheel and rotate it to
move the table.
◆Right hand: Hold the grinding wheel feed handle and move it
leftward to bring the wheel within 2-3 mm of the valve's working
surface.
◆Start the grinding wheel, drive mechanism, and oil pump
switches.
◆Use both hands to make fine adjustments until the valve gently
contacts the grinding wheel to begin grinding.
◆Continue until the entire grinding ring becomes bright and
polished.
◆Left hand: Rotate the handwheel counterclockwise 360 degrees
for a final pass.
◆Right hand: Move the grinding wheel rightward until it triggers
the limit switch and stops.
◆Press the cylinder switch to release and remove the valve.
◆Repeat the above steps to process the next valve.
4. Grinding the Valve Tip:
◆First, move the grinding wheel closest to the limit switch.
Ensure the wheel remains spinning when the switch is engaged.
◆Tighten the grinding wheel platform limit lock bolt to secure
its position.
◆Secure the valve in the V-groove of the double V-block fixture.
◆Start the grinding wheel motor.
◆Adjust the scale adjustment handwheel to begin grinding the
valve tip.
5. Chamfering the Valve Tip:
◆Slide the valve stem fixing sleeve onto the valve stem and
adjust it to the correct position.
◆Then, secure the valve into the V-groove fixing bracket.
◆Adjust the distance between the bracket and the grinding wheel.
◆Start the grinding wheel.
◆Right hand: Rotate the valve steadily.
◆Left hand: Adjust the scale handwheel to control the feed for
chamfering. |
| Product Presentation & Details |
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Valve Grinding Machine*1 |
Accessory Kit *1 |
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You can
make order with no worry.
Any concern just feel free to let us know, we'll reply in 24
hours in normal condition.
Handling Time: Shipping is usually made in 1-3 business days
after payments cleared. Orders are processed from Monday-Friday;
Not on the weekends & public holidays.
Warranty: 6 months' warranty for the machines, not for the
consumables.
We stand behind our products all the item, so even if your
warranty period has expired, you can still seek for service or
technical support from us with low cost. |
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