CNC Cutting Tables for Plasma, Oxy-Fuel, Laser and Waterjet Cutting: Types, Design and Applications

A CNC cutting table is one of the most important components of an industrial cutting machine. It supports the workpiece throughout the cutting process, so its design must suit the cutting technology, sheet dimensions, material thickness and production workflow. Choosing the right table helps keep the material stable, supports effective fume and dust extraction, simplifies scrap collection and makes the machine easier to operate.

Available configurations include downdraft and sectional cutting tables, plasma and oxy-fuel cutting tables, tables with slag and scrap collection trays, laser cutting tables, pull-out tables and automatic pallet changers. The right solution depends primarily on the cutting process and production requirements.

What is a CNC cutting table?

A CNC cutting table is the support structure that holds the material during automated cutting. In sheet and plate cutting applications, it must provide adequate support, allow unobstructed movement of the cutting torch or head, and accommodate the collection or extraction of cutting by-products.

Depending on the design, a cutting table may incorporate a slat bed, scrap collection trays, extraction zones, a pallet exchange system or additional automation equipment.

CNC cutting tables are not all built the same way. A laser cutting table has different requirements from a table used for oxy-fuel cutting of thick steel plate. Waterjet cutting tables require a different approach again.

The CNC cutting table as part of an integrated cutting system

A modern CNC cutting table does more than support a metal sheet. It forms part of a complete production system that may include the CNC cutting machine, fume extraction and filtration equipment, automatic sheet loading, pallet exchange and scrap conveying systems.

Main types of CNC cutting tables

When specifying a machine, the cutting table should therefore be considered in the context of the entire production process. The right design helps the machine work to its full potential while matching production needs and making material handling more practical.

ECKERT offers CNC cutting tables for different cutting technologies, material sizes and levels of automation, from conventional downdraft and oxy-fuel cutting tables to configurations with scrap collection trays, automatic pallet changers and large-format laser cutting systems.

Types of CNC cutting tables

Cutting tables can be classified by cutting technology, structural design and level of automation.

The main configurations include:

• CNC downdraft cutting tables,
• sectional cutting tables,
• zoned downdraft cutting tables,
• plasma cutting tables,
• oxy-fuel cutting tables,
• oxy-fuel cutting tables with slag and scrap collection trays,
• downdraft tables for oxy-fuel cutting,
• laser cutting tables,
• downdraft tables for laser cutting,
• pull-out cutting tables,
• tables with automatic pallet exchange,
• large-format cutting tables.

In practice, these features can be combined. For example, an oxy-fuel downdraft table with scrap collection trays provides both fume extraction and collection of solid cutting waste.

CNC downdraft cutting tables

A downdraft cutting table extracts fumes, dust and fine particles generated during cutting. An extraction system beneath the cutting bed draws these contaminants away from the work area and directs them to a filtration or ventilation system.

Larger CNC cutting machines often use zoned downdraft tables. The table is divided into separate extraction sections, allowing suction to be concentrated in the area where the cutting head or torch is operating.

This approach is particularly useful for large cutting areas. Instead of extracting air across the entire table, the system focuses on the active cutting zone.

CNC plasma cutting tables

A CNC plasma cutting table must withstand high temperatures and accommodate the fumes, dust, slag and spatter generated by the process.

Depending on the application, table configurations include:

• downdraft tables,
• sectional tables,
• zoned downdraft tables,
• tables with slag and scrap collection trays,
• tables with replaceable cutting slats.

During plasma cutting, molten material and offcuts fall beneath the sheet. The design of the cutting slats and the collection space below them is therefore essential to reliable operation.

For high-volume production, easy access for removing accumulated slag and scrap is especially important.

CNC oxy-fuel cutting tables

Oxy-fuel cutting tables are primarily designed for cutting thick steel plate. Because the oxy-fuel process can handle substantial material thicknesses, the table must be designed for both heavy loads and the heat generated during cutting.

ECKERT offers oxy-fuel cutting tables in a range of sizes, including:

1500 × 3000 mm, 2000 × 3000 mm, 2000 × 4000 mm, 2000 × 6000 mm, 2500 × 6000 mm, 2500 × 8000 mm, 2500 × 12000 mm and 3000 × 12000 mm.

This makes it possible to match the table size to the sheet and plate formats used in the facility.

Oxy-fuel cutting tables with slag and scrap collection trays

Tables with slag and scrap collection trays are a practical option for oxy-fuel cutting of thick plate.

The process generates substantial quantities of slag and material remnants. Collection trays beneath the cutting slats catch this waste and keep it contained below the cutting bed for subsequent removal.

Oxy-fuel downdraft tables are also available with collection trays, combining fume and dust extraction with the collection of solid cutting waste.

CNC laser cutting tables

A laser cutting table must support a fast, precise cutting process. Key design requirements include stable material support, minimising laser reflections from the support structure and efficiently removing cutting by-products.

Common configurations include downdraft tables, pull-out tables and automatic pallet exchange systems.

The choice depends on the machine size and production workflow. In batch production, automatic pallet exchange can be particularly valuable because it reduces downtime associated with sheet changeovers.

Waterjet cutting tables and catcher tanks

A waterjet cutting table incorporates a purpose-designed catcher tank beneath the material support bed. It supports cutting with an ultra-high-pressure waterjet, absorbs the remaining energy of the jet after it passes through the workpiece, and collects cutting waste and, in abrasive waterjet applications, spent abrasive.

Depending on the application, a waterjet cutting table can be configured for processing steel, aluminium, stone, glass, ceramics or plastics. In abrasive waterjet cutting, tank design and access for periodic removal of accumulated sludge and spent abrasive are particularly important.

Waterjet systems can also incorporate equipment that simplifies catcher tank cleaning and maintenance, including water circulation and cutting waste removal systems. These features help keep the tank ready for subsequent jobs and support reliable operation in demanding production environments.

Pull-out cutting tables

A pull-out CNC cutting table moves out of the machine's cutting area, giving the operator easier access for loading material and unloading finished parts.

ECKERT offers pull-out table solutions for selected machines in the Diamond range.

Pull-out tables are particularly useful where straightforward material handling and shorter sheet preparation times are priorities.

Automatic pallet changers and exchange tables

In batch production, loading downtime reduces the time available for cutting. Automatic exchange tables and pallet changers help minimise these interruptions.

Depending on the configuration, available table formats include 1500 × 3000 mm, 2000 × 4000 mm, 2500 × 6500 mm and 2500 × 8000 mm.

A dual-pallet exchange system allows the next sheet to be prepared on one pallet while cutting continues on the other. This is particularly useful for repetitive batch production and multi-shift operation.

Compact Tower and automated material handling

Material storage and transfer systems take cutting table automation a step further.

Vector Compact Tower can be equipped with two pallet changers for the 1500 × 3000 mm format. This configuration combines the cutting process with automated material handling.

These systems are primarily intended for manufacturers looking to reduce manual sheet handling and maintain a more continuous production flow.

Large-format CNC cutting tables

The cutting table should be sized to meet actual production requirements. However, a machine does not have to be limited to a single material format.

The same CNC cutting machine can produce both small parts and long components. Selecting an appropriate table length allows it to accommodate a broader range of jobs.

ECKERT's range includes XLS large-format downdraft tables measuring 3300 × 13000 mm and 2500 × 7000 mm.

A choice of lengths and configurations makes it possible to match the cutting system to the production mix, available floor space and material dimensions.

How does cutting table length affect machine capacity?

Table length is one of the key parameters when planning a CNC cutting installation. A shorter table may be sufficient for small-part production, while a longer table accommodates larger sheets, plates and components.

A long cutting table does not restrict the machine to producing long parts. Within its working envelope, a suitably configured machine can handle both short and long workpieces.

When selecting a table, consider not only the maximum cutting format but also the production mix and the material sizes processed most often.

How are CNC cutting tables cleaned?

Slag, spatter, dust and scrap can accumulate on and beneath the cutting bed. Cleaning and waste handling methods depend on the cutting technology and table design.

Table cleaning and fume extraction serve different purposes. Extraction primarily removes airborne fumes, dust and fine particles. Collection trays catch solid waste, while cutting slats support the material and require periodic cleaning or replacement. Pull-out tables and pallet changers improve access for unloading; they do not, by themselves, clean the cutting bed.

Cutting tables can be equipped with accessories tailored to the machine and cutting process. ECKERT's options include stainless steel support grids, scrap collection trays, support arms for downdraft tables and adaptations that accommodate additional machine functions.

An upgrade kit is also available to adapt a 1500 mm segment of the S200 downdraft table for use with VarioDrill.

A cutting table does not have to remain unchanged throughout the machine's service life. Depending on requirements, suitable upgrades can extend its functionality and adapt the cutting system to a specific production process.

How to choose the right CNC cutting table

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Start by identifying the cutting technology. Plasma, oxy-fuel, laser and waterjet cutting each place different demands on the table.

Next, assess:

• sheet and plate dimensions and thicknesses,
• maximum material weight,
• the typical length of the parts being cut,
• the volume of cutting waste generated,
• fume extraction requirements,
• loading and unloading methods,
• production volume and operating schedule,
• the required level of automation,
• available floor space.

For high-volume production, an automatic pallet changer can help reduce loading downtime. For thick plate cutting, slag and scrap collection trays may be a priority. Large-format applications require sufficient table length and width, while intensive thermal cutting calls for effective fume extraction and convenient access for cleaning.