Stone

Wisdom Machinery Stone Rock Block Cutter Machine Saw

$40,000 - $100,000

Type: Stone Factory Machines › Stone Block Cutting Machines › Giant Disc Saw Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

1. Super heavy duty Casted iron bridge 2. Super heavy duty double shaft gearbox transmission 3. 55KW Blade motor 4. Blade Variable Frequency Drive to meet different cutting speed 5. Heavy duty 360 degree rotate table 6. Auto on/off water 7. Auto lubrication system 8. Easy operation interface available in English and Spanish 9. Metric and Imperial unit 10. Swivel Arm operator panel 11. Industry anti water Wireless controller 12. Super heavy steel

stone profiling machine double cutting blade disc industrial equipment for marble granite slab sheet board shaping sell

$9,500 - $11,500

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Stone Profiling Line Machine

Warranty: 12 Months

Usage: Granite, Marble, Quartzite

Machinery Function Features:

The machine adopts (CNC/PLC) control system, man-machine interface. According to CNC/PLC operating system to program a variety of special-shaped lines, X. Y-axis walking adopt servo motor to control speed independently, according to the stone material to adjust the speed. High-speed running parts are imported with high-quality, which has a fast cutting efficiency, high cutting accuracy, stability, simple and flexible operation. Especially for high-value large-size granite, marble slabs cutting.

Two-Process Countertop CNC Stone Machining Center For Granite Cutting

$18,000 - $26,000

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › CNC Working Center

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

This two-process stone processing center has the advantages of small footprint, low investment cost, and high utilization of personnel and equipment. It can help users realize the processing functions of edging and engraving. It is suitable for users who have unsaturated workload of countertop process and a small amount of engraving needs. 1.It can help customers realize edging and engraving functions of the countertops. One machine has multiple functions and has a small footprint. 2.The edging

QUICK-450/600 Bridge Cutting Machine

$16,500 - $18,100

Type: Stone Factory Machines › Stone Slab Cutting Machines › Infrared Bridge Cutting Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

QUICK-450/600 uses PLC system and Human-machine interface, combined with Ultra-high precision rotary encoder to locate and infrared device. The machine uses inverter to control left-right feeding and with the structure optimization and upgrading, the left- right feeding speed is greatly increased,which improving the production capacity. It uses the hydraulic system for up-down lifting and with combination of Chrome-plated guide pin and wearle guide bush, thus the gap is small, machine is wearabl

Wkq-1200 Middle Block Stone Cutting Machine For Marble Granite

$20,000 - $26,000

Type: Stone Factory Machines › Stone Block Cutting Machines › Monolama Cutting Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

WKQ-1200,designing reasonable structure, adopting PLC system and Human-machine interface, togethering Chinese & English double operation language and infrared device, equipting with ultra-high precision rotary encoder, using inverter to control left-right feeding,adjusting the speed according to stone material, using hydraulic lifting system which equipted through slide plate, also this machine provide the unique side beam protection device, main spare parts adopt imported high-quality materials

Bestlink Factory Price Portable Mosaic Stone Cutting Machine

$500 - $5,500

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Mosaic Cutting Machine

Warranty: 6 Months

Usage: Granite, Marble, Limestone, Slate, Artificial Stone, Basalt, Sandstone

Machinery Function Features:

This Mosaic Stone cutting machine is perfect for cutting marble, stone and strip tile and with high precision into mosaic and micro mosaic. We have two models, one is manual operation, and the other is electric operation. Both the mosaic chopping machines are equipped with two blades in hardened steel: the lower one is secured to the structure and doesn't move; the upper one is driven by the fly-wheel and falls in a perpendicular on the lower. The mosaic stone cutting machine comes complete with

Mono-Block Bridge Cutting Machine for Stone Granite- Marble

$220,000 - $250,000

Type: Stone Factory Machines › Stone Slab Cutting Machines › CNC Bridge Cutting Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Artificial Stone, Basalt, Quartzite

Machinery Function Features:

Feature Characteristics: 1)Cutting Precision of ±0.2mm with Maximum Blade Diameter of 500mm 2)Equipped with 90° Rotating Head and 0-85° Hydraulic Tilting Table for Slab Loading & Unloading 3)Iron Cast Crossbeam for Durable Working Tension, avoiding crossbeam bending for long-term machine working; 4)European & Japanese Components for Prolong Machine Life, Working Precision and Easy to Operate & Maintain.

Thin veneer saw machine for cutting corner stone

$10,000 - $15,000

Type: Stone Factory Machines › Stone Tile Cutting Machines › Strip Cutting,Edge Trimming Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Artificial Stone, Quartzite, Sandstone, Travertine

Machinery Function Features:

Powerful 45kw 60 Hp main motor Man motor with inverter Belt motor with inverter Return conveyor optional

CNC Marble Granite Cutter For Rock Stone Curve Cutting Machine

$14,000 - $25,000

Type: Stone Factory Machines › Stone Slab Cutting Machines › CNC Bridge Cutting Machine

Warranty: 12 Months

Usage: Granite, Marble, Artificial Stone

Machinery Function Features:

WY-1200 /1400 /1600 uses PLC system and Human-machine interface, combined with Ultra-high precision rotary encoder to locate, and infrared device, it uses inverter to control leftright feeding, adjust the speed according to the stone material. It uses hydraulic lifting system, and main spare parts adopt imported good-quality materials. Thus the whole machine is featured as high cutting efficiency, high stability, easy-operating to suit specially shaped stone products, tombstone and curb stoneQ

Undercut Holing Machine For Stainless Steel Anchor

$5,500 - $7,000

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Stone Drilling, Slot Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Undercut Holing Machine For Stainless Steel Anchor Equipment Introduction：This stone drilling machine is used to drill undercut anchor holes in stone panels, concrete panels,ceramic plates,and other cladding panels. Such as granite, marble, travertine, sand stone, crystal glass, quarz, ceramic, etc. Equipment features： ·Easy to operate ·2 heads can work together or work by single head ·Automatic drill Equipment configurations： ·Assembled with aqua storage tank and desk universal roller ·Electric

Wimac Overhead Bridge Cranes Turkey

Type: Stone Factory Machines › Stone Handling, Loading Machines › Gantry Crane, Overhead Cranes

Warranty: 12 Months

Usage: Granite, Marble

Machinery Function Features:

Wimac Crane Turkey to serve you for any handling equipments since has been founded. - Wimac Double Girder EOT Crane Turkey - Wimac Gantry Crane Turkey - Wimac Electrical Crane Turkey

QMJ-470 Bridge Type Eight Heads Automatic Marble Polishing Machine

$28,000 - $31,000

Type: Stone Factory Machines › Stone Surface Processing Machines › Bridge Polishing Machine for Slabs

Usage: Granite, Marble, Limestone, Onyx, Sandstone, Travertine

Machinery Function Features:

The machine is mainly used for polishing marble slabs.

Volvo Bucket Teeth 20GPE,30GPE,30AMRE,40GPE,40AMRE,55GPE,80GPE,125GPE

$30 - $50

Type: Stone Quarry Machines › Quarry Heavy Equipments › Excavator

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Basalt, Quartzite, Sandstone, Travertine

CNC Work Center – Panda 1308

$18,000 - $20,000

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › CNC Working Center

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

The Stoneplus Panda1308 is an ideal machine to ease your work of cutting out the sink of any stone materials with extreme simplicity. The three-side opening means that you can cut a sink in any size counter, vanity, or even an Island. Problem solved. Full automatic. Sink cut out with minimal hands on deck. Space saving. The small footprint permits you easily place this machine even in a small workshop but you can load very long slabs. The installation is plug-and-play, without any structural wor

Midstar XY-X8 For Granite Marble Concrete Floor Renewing Machine

$3,000 - $3,180

Type: Stone Maintenance Machines › Floor Grinding, Polishing Machine

Warranty: 6 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Operating width: 580mm Grinding disc: 300mm*4 (4heads) Rotating speed: 450-1680rpm Horse power /HP: 10HP Voltage: 380-440V three phase Weight: 214kg(include addweight 30kg/piece) Water tank: 30L Packing size: 120*75*115 Delivery time: 1 week Payment term: TT/Western Union Certificate: CE/SGS/ISO9001 Configuration: Domestic motor and Domestic inverter

CHEERSURE 5 Axis Sand Blasting Machine

$75,000 - $90,000

Type: Stone Factory Machines › Stone Surface Processing Machines › Stone Sandblasting Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

This CNC machining center is equipped with a 3-axis interpolation (XYZ) system and is designed for processing marble, granite and other natural stones. The equipment is controlled by a high-end CNC system and is equipped with an automatic tool change spindle structure and a double-sided in-line tool magazine. Combined with high-precision linear guides, ball screw transmission and oil-immersed track structure, it has significant advantages such as high intelligence, high precision and strong stab

Bridge Stone Bottom Shaving Machine- Bridge Type Single Head Polishing Machine

$10,000 - $11,000

Type: Stone Factory Machines › Stone Surface Processing Machines › Single Head Polishing Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Onyx, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Product description Kaida machinery also developed this bridge type plate bottom trimming machine. In view of the previously ignored block board bottom reprocessing, to better use. It not only brings great benefits to enterprises, but also contributes to environmental protection. Product characteristics Bridge plate bottom trimming machine can process all kinds of granite and marble plate bottom into specified thickness. The utility model has the advantages of high efficiency, low processing cos

LTMG-60 Ton Crawler Excavators

$154,508 - $158,992

Type: Stone Quarry Machines › Quarry Heavy Equipments › Excavator

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

1.Purpose built for mining The major stress locations are reinforced to resist against severe working conditions. Using advanced engineering and software, we carefully analyze each structure to create durable, reliable machines for tough applications. 2.Work in comfort The full size ROPS and OPG certified cab is quiet and comfortable. Fully adjustable suspension seat can maximize comfort levels and reduces operator fatigue. 3.Reduced maintenance costs Convenient maintenance means less cost. The

overhead crane 12 ton

Type: Stone Factory Machines › Stone Handling, Loading Machines › Gantry Crane, Overhead Cranes

Warranty: 12 Months

Usage: Granite, Marble, Onyx, Sandstone, Travertine

Water Wall Dust Collector For Stone Fiberglass Porcelain Fabricate

$3,000 - $8,000

Type: Stone Factory Machines › Stone Factory Cleaning Equipments › Air Dust Collector

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

wisdom waterwall dust collector is an all stainless steel, heavy duty,, wet dust collector made to eliminate 90% of dust particles. The operation of the water wall dust collection booth is extremely simple, simply push the button and work in front of it. 1.Strong suction power 2.Easy operation 3.Multi safety protection 4.Material use stainless steel 5.With Extension Booth

500 Bar High Pressure Water Sand Blasting Machine Wh-5018

$5,100 - $5,300

Type: Stone Factory Machines › Stone Surface Processing Machines › Water Blast Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Artificial Stone, Quartzite, Sandstone, Travertine

Machinery Function Features:

Processing for nature stone,artificila stone surface Make it rough and recover the original color Dustless environmental protection Energy conservation and high production capacity Italian pump maintenance rate is low and long life

MS-2600 Manual Stone Granite Polishing Machine

$2,100 - $2,600

Type: Stone Factory Machines › Stone Surface Processing Machines › Arm Polishing Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Quartzite

Machinery Function Features:

This machine uses round column as its guide slip surface for steady automatic ups and downs. Two optional main drive motors (single speed and dual speeds) are upon the clients' choice. It is applicable to surface grinding and polishing of tombstones, slabs and mosaic which needs to change the thickness frequently. The workable for grinding interior/exterior arcs is available upon customer's request.

2024 New Launch Automatic Quartz Stone CNC Machining Center For Sale

$17,200 - $26,700

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › CNC Working Center

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Quartz stone CNC machining center is a stone fabrication machine for the making of stone kitchen sinks, stone countertops, basins, etc. It integrates edging, polishing, drilling, milling, and special-shaped cutting. One-key intelligent completion of conventional blanking, 45° bevel cutting, multi-angle arbitrary cutting, curve cutting, internal angle and basin hole cutting and other processes. 1. High degree of automation. The entire process of grinding, polishing, drilling, milling and other ac

Manual Stone Cutting Machine HSQB-600

$9,000 - $16,000

Type: Stone Factory Machines › Stone Tile Cutting Machines › Mitre Saw, Edge Cutting Machine

Warranty: 6 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Cut slab to size

Stone Block Polymer Quarrying Pushing Air Bag

$100 - $500

Type: Stone Quarry Machines › Quarry Hydro-Bags, Rock Splitter › Quarry Air Pushing Bags

Warranty: 3 Months

Usage: Granite, Marble, Limestone, Slate, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Bestlink Factory Price Quarry Block Air Bag Pushing for Marble Granite Quarry block pushing air bag is used to separate the marble, granite, stones (rock mass) block from the basic rock achieving a maximum opening of 45-120cm at the top. The air bag can separate the block (rock mass) which is having all side wire saw cut faces. The standard configuration set contains two air bags, with one set of air hose & air control panel. Our air pushing bag is manufactured with high-tech materials and proce

CNC-3020 five axis AB CNC waterjet cutting machines business

$44,500 - $48,500

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Waterjet Machines

Warranty: 12 Months

Usage: Marble, Limestone, Artificial Stone

Machinery Function Features:

This machine adopt AB axis design,realized 5 axis(X,Y,Z,A,B)linkage,concise but not simple,waterproof and sand-proof more tight,electrical wiring more skillful,all spare parts are processed with the function of high accuracy and high speed cutting,no wait for turning, no dots,adopt imported high-end brand serve motor and servo driver,make the control accuracy higher,With the angle of cutting,solve the matter of the quality of cutting under uneven affects the product's piece , without grinding ca

Acm-3015 4 Axis Column CNC Carving Machine

$32,000 - $47,000

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Stone Carving,Engraving Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Sandstone, Travertine

Machinery Function Features:

This machine adopts numerical control system, three -axis linage, doulbe row four-row slider, constant power spindle motor, two -way toll colling system, with stable running , high efficiency advantages,suitable for processing marble, granite, aluminum plate and other materials.

Toolstar Diamond Wire Saw Machine For Marble Granite Quarry

$12,800 - $28,000

Type: Stone Quarry Machines › Quarry Wire Saw Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

1. Using frequency converter + PLC control, the motor can be stepless speed regulation 2. Using digital communication, the control circuit is simple and the failure rate is low. 3. Control panel is fixed HMI screen. It's waterproof and dust-proof, which also has dynamic display images and working information, like input voltage, cutting data and working time. 4. Intelligent fault detection of equipment system, alarm protection and prompt solutions, timely treatment,user friendly 5. Using PID tec

VOLVO Bucket Teeth T55GPRC,14553243RC,14553243,V360SYL,14553244,843RC

$25 - $60

Type: Stone Quarry Machines › Quarry Heavy Equipments › Excavator

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Basalt, Quartzite, Sandstone, Travertine

Double Head Hole Expanding Machine/Stone Drilling Machine

$5,000 - $7,000

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Stone Drilling, Slot Machine

Warranty: 6 Months

Usage: Granite, Marble, Artificial Stone

Machinery Function Features:

Double head hole expanding machine I. The working principle and introduction of the double-head hole expanding machine Other name:Back bolt punching machine, back bolt drilling machine, stone opening machine. Type:Double head. Usage:Stone drilling (back bolt hole) II.Main use: This machine is suitable for backing bolts in marble, granite, ceramic plates, honeycomb panels, high-density cement boards and all kinds of man-made fiber boards. It is suitable for all the current popular stone curtain w

Thin stone veneer saw machine for cutting corner cutting machine

$10,000 - $15,000

Type: Stone Factory Machines › Stone Slab Cutting Machines › Infrared Bridge Cutting Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Quartzite, Sandstone, Travertine

Machinery Function Features:

Powerful 45kw 60 Hp main motor Man motor with inverter Belt motor with inverter Return conveyor optional

Stone Drilling Equipment For Fixing Anchor

$5,500 - $7,000

Type: Stone Factory Machines › Stone Finishing, Profiling Machines › Stone Drilling, Slot Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Stone Drilling Equipment For Fixing Anchor Equipment Introduction：This is used to drill undercut anchor holes in stone panels, concrete panels,ceramic plates,and other cladding panels. Such as granite, marble, travertine, sand stone, crystal glass, quarz, ceramic, etc. Equipment features： ·Easy to operate ·2 heads can work together or work by single head ·Automatic drill Equipment configurations： ·Assembled with aqua storage tank and desk universal roller ·Electric control system ·Stone position

HSM-FZ180 Turnover Machine

Type: Stone Factory Machines › Stone Handling, Loading Machines › Automatic Loader, Unloader for Slabs

Usage: Artificial Stone

Machinery Function Features:

Turnover Machine This machine is one of accessory equipment for micro-crystal stones, man-made stones production line. It adopts high-pressure oil-cylinder to push rolling of slab. It has a damping buffer, so it can operate safely and stably, greatly decrease working intensity and improve the work efficiency.

KDQJ-400 Type Rock Cutting Machine- Bridge Cutting Machine

$20,500 - $22,000

Type: Stone Factory Machines › Stone Slab Cutting Machines › CNC Bridge Cutting Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

Fully automatic touch type CNC machining center,multi language conversion,one machine table processing,wider appplication range,can achieve cutting,chamfering,edge grinding,slotting,drilling,circle arc and other special-shaped processing,simple operation,more practical.

Crane

Type: Stone Factory Machines › Stone Handling, Loading Machines › Gantry Crane, Overhead Cranes

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx

LTMG-15 Ton Wheel Excavator

$48,293 - $50,771

Type: Stone Quarry Machines › Quarry Heavy Equipments › Excavator

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

1.As an important member of small excavator series products, wheeled hydraulic excavator has multiple functions, such as backhoe excavating, crushing, drilling and clamping, and meanwhile it has advantages of easy transfer, low energy consumption, flexibility and adaptability, as well as low price, light weight and convenient maintenance. 2.It is powered by a high-efficiency direct injection engine, which has been carefully designed and commissioned to achieve sustained, stable and powerful powe

Daewoo Bucket Teeth 2713-1221,2713-1217RC,2713-1219,2713-1219RC

$10 - $20

Type: Stone Quarry Machines › Quarry Heavy Equipments › Excavator

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Basalt, Quartzite, Sandstone, Travertine

Stone Pushing Tool Quarry Air Pushing Bags Polymer Cushion Airbag

$13 - $40

Type: Stone Quarry Machines › Quarry Hydro-Bags, Rock Splitter › Quarry Air Pushing Bags

Warranty: 3 Months

Usage: Granite, Marble, Limestone, Slate, Artificial Stone, Basalt, Sandstone

Machinery Function Features:

The steel cushion Hydro-Bag is widely used in the marble and stone quarrying industry,specially for stripping blocks from the mountain. The revolutionary aspect of the HYDRO-BAG equipment lies basically in the possibility of stripping blocks up to 1000 tons or more, without the need to prepare slots to house the jacks since the HYDRO-BAG has an original thickness of just 2 mm (0.08") and can be easily slipped into the wire saw cut. A complete HYDRO-BAG equipment consists of: 1. Electric or pneum

500 Bar High Pressure Water Sand Blasting Machine WP-5330

$15,500 - $15,800

Type: Stone Factory Machines › Stone Surface Processing Machines › Water Blast Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Artificial Stone, Sandstone, Travertine

Machinery Function Features:

High pressure water sandblasting: high pressure water mixing quartz sand, it will make antique effect. our machine has two nozzles. one for water+sand, it can make white and rough effect, similar as flaming. another is for only water to wash off the white surface and get color. It can process on all types stone directly. if u have flaming or shot blasting, they are white. u can use our machine's high pressure water to wash the surface and enhance color

DISCOVERY 4-2000 CNC Diamond Wire Shaping Machine

$32,000 - $40,000

Type: Stone Factory Machines › Stone Block Cutting Machines › CNC Diamond Wire Shaping Machine

Warranty: 12 Months

Usage: Granite, Marble, Limestone, Slate, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine

Machinery Function Features:

CNC-2000-2500-3000 adopts CNC control, Four-Axis linkage, which can process the circular stone slab, roman column, numeral, letter, Chinese characters and other designed shapes. 1. It has heavy load bearing structure, four orbits on each upright column, adjusted the balance by the rollers, with less friction and higher precision. 2. The left and right frame achieve synchronized lifting by steering equipment on the upper frame. The lifting accuracy increased by the conbine of lead screw and doubl