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Large CNC gantry-machined anodised aluminium structural plate with precision hole grid
LARGE FORMAT · GANTRY CNC · FLATNESS · HOLE GRIDS · ISO 9001

Aluminium Plate Gantry Machining
Large Baseplates, Fixture & Structural Plates Machined Flat

ISO 9001 certified large-format plate machining on gantry CNC centres: aluminium baseplates, fixture plates, robot mounting plates, cooling plates, vacuum chuck plates, machine bed and long structural plates in 6061, 6063, 5052 and 7075. We machine large faces genuinely flat with accurate hole grids, T-slots, pockets and cooling channels, then anodise, hard-anodise or chromate-finish. DDP shipping to the USA, Germany, France, Italy and across Europe — quote in 24 hours.

Large Format
Gantry Envelope
High Flatness
Ground & Milled
Clear / Black / Red / Blue
Anodising
24 h
Quote Response
OVERVIEW

Large Plates That Arrive Flat, Square and Ready to Assemble

Big plates reveal every weakness: machine deflection, work-holding stress, heat and material movement. Our gantry centres, stress-relieved material and staged roughing/finishing strategy keep large baseplates and fixture plates flat and dimensionally stable, with hole patterns and bores that line up at assembly.

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Large Gantry Work Envelope

Gantry CNC centres handle large-format and long plates that exceed ordinary vertical-machine capacity, with stable, rigid machining across the whole face.

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Controlled Flatness & Parallelism

Stress-relieved stock, symmetric roughing, finishing passes and inspection keep large faces flat and parallel, so plates mate to frames and carriages without rocking.

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Accurate Hole Grids & Bores

Precision hole grids, dowel holes, tapped holes, counterbores and reamed bores positioned accurately across the plate for bolts, pins and linear guides.

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T-Slots, Pockets & Channels

T-slots, dovetails, pockets, weight-saving cavities, engraved grids and cooling/vacuum channels machined into the plate as designed.

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Cooling & Vacuum Plates

Liquid-cooling plates with internal channels and vacuum chuck plates for thermal management, semiconductor and work-holding applications.

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Anodised & Protected

Clear, black, red or blue anodising, hard anodising and chromate conversion protect the surface, with masking of precision bores and contact faces.

MATERIALS

Plates We Machine on Gantry Centres

We use stress-relieved, flat aluminium plate and can also machine steel, stainless and tooling plate. Material selection is part of our free DFM review.

Aluminium 6061 T6/T651

The standard structural plate alloy — good strength, machinability, flatness and anodising response for baseplates, fixtures and machine beds.

Aluminium 6063

Often used for frames and extruded structural sections; plates and sections machined with accurate mounting and joining features.

Aluminium 5052

Good corrosion resistance and formability for panels and guard plates, with smooth anodised and coated surfaces.

Aluminium 7075

High-strength plate for high-load fixture and aerospace structural plates where weight and stiffness are critical.

Cast Aluminium Tooling Plate

Cast aluminium (MIC-6/ACP-style) tool-and-jig plate offers excellent inherent flatness and dimensional stability for precision fixtures.

Steel / 4140 / S355 Plate

Steel structural and machine plates for higher-load baseplates and weldments that require superior stiffness and strength.

Stainless Plate 304/316

Corrosion-resistant base and fixture plates for food, medical, chemical and washdown environments.

Cast Iron / Granite Bed

Machine beds and reference plates in cast iron or with granite interfaces quoted on request for ultra-stable metrology applications.

REPRESENTATIVE PARTS

Gantry Plates We Manufacture

Every component is made-to-print / OEM. A selection of representative large-format machined plates from our gantry capabilities.

Large CNC gantry machining centre machining an aluminium plate

Gantry Machining Centre

Large-format work
Precision machined aluminium baseplate with hole grid

Machined Baseplates

Flat, hole-grid faces
CNC gantry-machined precision fixture plate with T-slots

Fixture / Tooling Plates

T-slots & bores
Anodised robot mounting plate machined on a gantry centre

Robot Mounting Plates

Precision bolt pattern
Aluminium liquid cooling plate with internal channels

Cooling Plates

Internal channels
Long structural aluminium plate machined and anodised

Long Structural Plates

Stable & anodised

Need an oversize plate, special alloy or cooling/vacuum channels? Send STEP, STP, IGS, DWG or PDF for a quotation within 24 hours.

SURFACE FINISH

Plate Surface Treatments

Large plates are finished to protect the surface while preserving the precision of mating faces and bores.

Clear Anodising

Natural/silver anodising that protects aluminium plates and adds corrosion resistance without changing the cosmetic appearance.

Black / Red / Blue Anodising

Coloured Type II anodising (black, red, blue and other colours) for branded or functional identification, with even coverage on large faces.

Hard Anodising (Type III)

Thick, hard-anodised wear surfaces for fixture plates, tooling and vacuum plates subject to repeated clamping and abrasion.

Chromate / Conversion Coating

Chem-film/chromate conversion for electrical conductivity and corrosion protection, common for grounding and electronic baseplates.

Bead Blasting / Brushing

Satin bead-blasted or linear-brushed surfaces before anodising for a uniform, premium cosmetic finish.

Masking & As Machined

Selective masking of precision bores, dowel holes and contact faces; plates can also be supplied as-machined with defined Ra and cleaned surfaces.

SPECIFICATIONS

Typical Gantry Plate Capabilities

ParameterCapability
ProcessesGantry CNC face milling, drilling, tapping, boring, T-slots, pockets, engraving, cooling/vacuum channels, edge profiling
MaterialsAluminium 6061 T6/T651, 6063, 5052, 7075, cast tooling plate, steel 4140/S355, stainless 304/316 — stress-relieved, flat stock
FormatLarge-format and long plates on gantry/bridge centres; quote your exact envelope for machine-fit confirmation
Flatness / accuracyControlled flatness and parallelism across large faces; accurate hole grids, dowel positions and reamed bores; CMM verified
Surface finishMachined Ra typical; anodised clear/black/red/blue, hard-anodised, chromate, bead-blasted or brushed; masked bores
DocumentationMaterial certificate, stress-relief information, first-article inspection, CMM/flatness report and full traceability
StabilityStress-relieved material, symmetric roughing/finishing and staged machining to reduce movement in large plates
Quantity1-off prototype / machine build · small batch · repeat production; no fixed MOQ
ShippingDHL/FedEx/UPS, air or sea freight; EXW, FOB or DDP to the USA, Germany, France, Italy, Spain, Australia and worldwide
APPLICATIONS

Where Our Gantry Plates Are Used

Large, stable, precision plates that form the structural foundation of machines, automation and systems.

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Robotics & Automation

Robot mounting plates, baseplates, seventh-axis rails and precision fixturing for robotic cells and automation lines.

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Machinery & Machine Tools

Machine beds, sub-plates, riser blocks and baseplates for automation equipment, conveyors and production systems.

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Semiconductor & Optical

Flat, stable vacuum chuck plates, optical breadboards and metrology bases for laser, display and semiconductor equipment.

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Thermal & Energy

Liquid cooling plates and cold plates for power electronics, battery systems, data centres and thermal management.

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Fixtures & Workholding

Precision fixture and tooling plates with T-slots, grids and locating features for CMMs, assembly and machining jigs.

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Automotive & EV

Large structural and battery-tray plates for automotive, EV and mobility programmes with accurate bolt patterns.

FAQ

Aluminium Plate Gantry Machining FAQ

Practical answers from our engineering team. Still unsure? Send your drawing and ask.

How large an aluminium plate can you machine?
We machine large-format and long plates on gantry/bridge centres with a substantially larger envelope than standard vertical mills. Send your exact length, width and thickness and we will confirm machine fit and any seams/joints for oversized assemblies.
How do you keep a large baseplate flat?
We use stress-relieved, flat stock (such as 6061-T651 or cast tooling plate), symmetric roughing, intermediate stress-relief, and light finishing passes, then support the plate correctly and measure flatness on a CMM or surface plate before release.
Can you machine T-slots, hole grids and cooling channels?
Yes. We machine T-slots, dovetails, grids of tapped/dowel/through holes, counterbores, reamed bores, pockets, engraved reference scales and internal liquid-cooling or vacuum channels into the plate.
What flatness and tolerance do you achieve?
We control flatness and parallelism across the face and position hole grids and bores accurately, with results verified by CMM and flatness inspection. Achievable values depend on plate size and material, which we confirm during the DFM review.
Do you anodise large plates and can you colour them?
Yes. We offer clear, black, red and blue Type II anodising, hard anodising and chromate conversion, with masking of precision bores, dowel holes and contact faces so assembly dimensions are preserved.
Which aluminium plate grade is best for a baseplate?
6061-T6/T651 is the common choice for a good balance of strength, machinability, flatness and anodising; cast tooling plate offers the best as-supplied stability for precision fixtures, and 7075 for high-load plates. We can recommend a grade for your application.
Do you provide material certificates and flatness reports?
Yes. We supply material certificates, stress-relief information, first-article inspection and CMM/flatness reports with measured values, so each large plate is traceable and verified before it ships.
How do you ship large plates to the USA and Europe?
We pack large plates flat and protected against bending and surface damage, and ship by DHL/FedEx/UPS, air or sea freight under EXW, FOB or DDP terms. DDP to Germany, France, Italy, Spain and other EU countries includes customs and duty for door-to-door delivery.
RELATED SERVICES

Explore Our Other Capabilities

CONTACT US

Request a Gantry Plate Quote

Send your plate drawings and required flatness — our engineering team will reply within 24 hours (Mon–Sat).

Contact Information

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Phone / WeChat
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Address
1F, Bldg B, Anhongji Sci-Tech Park, Chuangyi Rd, Dalang, Longhua, Shenzhen, Guangdong, China
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Working Hours
Mon–Sat 08:00–18:00 (GMT+8)

Send an RFQ

STEP, STP, IGS/IGES, DWG, DXF, SLDPRT, X_T, PDF, ZIP, RAR, 7Z & images · up to 50 MB per file, 150 MB combined · up to 10 files. For larger files, paste a file-sharing link in the message.
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