Jinan Weihua Machinery & Equipment Co., Ltd · Jinan Shandong China
Laser engraved artwork on a hard surface
Application Case

Marble and Granite Photo Engraving

Engraving large slabs on standard machines requires flipping the stone or using heavy lifting gear to reach the back, which risks breakage.

Client Background

Who Runs This Job

A typical buyer for this application is a memorial workshop or stone fabricator processing tombstones and granite plaques. Order sizes range from single custom pieces to batches of thirty, and the stone thickness varies from 20 mm to 100 mm depending on the slab stock on hand.

Challenge

The Problem On The Floor

Engraving large slabs on standard machines requires flipping the stone or using heavy lifting gear to reach the back, which risks breakage. Existing rotary systems struggle with the weight of granite, and manual marking of photo positions is too slow for the 1x1 mm text requirements on memorial plaques.

Pain Points

Pain Points Behind The Enquiry

  • Heavy granite slabs could not be lifted onto a fixed bed without a crane
  • Standard rotary attachments failed to support the weight of thick memorial stones
  • Photo alignment on irregular stone surfaces required manual marking and re-checking
  • Small text on plaques was blurred by low-resolution engraving settings
Our Solution

What We Specified

A WH-1390 CO2 laser engraver with a 60 W or 80 W source handles stone work on an open mobile workbench. The air pressure lifting platform raises and lowers the engraving frame to match the stone thickness, and the split type design allows large-format graphics to be spliced without moving the heavy object.

Process

Manufacturing Process

  • Graphic files are imported as BMP, PLT, DST, DXP or AI into the control software
  • The stone is placed on the open mobile workbench and secured
  • The air pressure lifting platform adjusts the frame height to the stone thickness
  • Photo and text positions are spliced using the 0.01 mm resetting accuracy
  • The CO2 laser engraves at up to 60000 mm/min using water-cooling and air assist
  • Exhaust-fans and air-blower clear stone dust during the run
Supply Chain

Supply And Delivery

The machine is configured with a 60 W or 80 W source and water-cooling to handle the heat load of stone dust. Delivery is by sea, air or international express, with the unit packed in a 2400 x 1730 x 1360 mm crate.

Quality Control

Quality Control

Resetting positioning accuracy is verified at ±0.01 mm before shipment. The air pressure lifting platform is tested for smooth vertical adjustment, and the water-cooling protection system is checked to ensure the laser tube operates within the 0-45°C temperature range.

Outcome

Result

Memorial plaques come off the bench with 1x1 mm English characters legible and photo details intact. Because the frame adjusts up and down, the same machine handles thin granite tiles and thick tombstone slabs without re-tooling. Large-format graphics are spliced on the open bench, so heavy stone does not need to be moved for each pass.

Customer Benefit

What The Buyer Gains

Stone fabricators can quote large memorial projects without investing in a crane, because the split type workbench lets the operator walk around the stone. The air pressure lifting platform removes the manual shimming step, so setup time drops from ten minutes to under two minutes per slab.

Samples From This Application

Laser engraved artwork on a hard surface
Wood panel engraved with a CO2 laser

Machines Used

All machines

Run The Same Job In Your Workshop

Send a photo or drawing of the part. We will tell you which machine handles it, what it will not do, and what the crate will weigh.