Aluminium profile through-feed bar processing centre: machining and cutting finished parts straight from full-length bars
A through-feed bar processing centre: full-length extrusions go in from a magazine, a gripper pushes them through a rotating spindle module and a CNC saw, and machined, cut-to-length parts come out on a belt — no operator between the steps
A through-feed bar processing centre replaces separate sawing and machining stations for window, door and curtain-wall profiles with one pass: a magazine holds full-length bars, a gripper pushes each bar through a milling module whose spindles turn around the profile, a CNC saw cuts off each finished part, and an outfeed belt stacks parts while the next bar is already being prepared. Buying one is a question of bar length, profile section, spindle count and how the saw can approach the profile.
Automatic through-feed bar processing centres (pass-through machining and cutting lines) for aluminium and PVC window, door and façade profiles that take full-length bars from a loading magazine, machine them in a rotating multi-spindle module and cut finished parts off with an integrated CNC saw, with automatic outfeed. Stand-alone machines are covered on their own pages: the Aluminium profile CNC machining centre page for long-bed machining centres with tool magazines, the Aluminium profile drilling machine page for fixed drill units, the Aluminium profile CNC milling machine with a pneumatically tilted clamp beam page and the Aluminum profile cutting machine page for saws. Machining centres for aluminium parts rather than long profiles are on the Aluminum CNC milling machine (BT30 machining centre) and High-speed CNC milling machine for large aluminium parts pages.
CNFX editorial research · Sources checked October 12, 2026 · 4 sources
From a 7.5 m bar to finished parts: magazine, gripper feed, spindle module, saw and outfeed belt
Both machines below follow the same sequence. Emmegi describes QUADRA L1 as an automatic magazine and thrust feed for profiles up to 7,500 mm with a gripper, a central milling module and cutting module, and an outfeed unit with transverse belts to the unloading magazine. [1] elumatec's SBZ 628 XL loads from the left, mills with up to eight spindles placed freely around the profile, cuts to length and sets machined profiles down in an unloading store. [3]
elumatec's launch release for the SBZ 628 put the case for the format: one pass-through centre takes a profile from the infeed of the unmachined bar to the finished product with no manual intervention, “replacing several individual machining stations”, and is designed for one-man operation. [4] Editorial calculation: QUADRA L1's 9,660 mm bar-positioning travel is 2,160 mm longer than its 7,500 mm maximum bar.
External gripper places parts on the outfeed belt; extensions to 6,000 or 8,000 mm optional [3]
Give the supplier your longest and shortest bar, the longest finished part, the number of profile systems and a cutting list with machining operations per part; Emmegi states that machinable sections and operations have to be checked against the specific profiles.
02
Cutting parts off the bar: a Ø600 mm down-stroke blade versus a 4-axis saw approaching from three sides
The saw decides which end cuts a part can leave the machine with. Emmegi's QUADRA L1 cutting module is a 600 mm carbide-tipped blade moving downward on three axes, positioned by NC from −48° to +245°, with segments held and handled by two motorised vices; it takes profiles up to about 266 mm high and 300 mm wide, subject to a feasibility check. [1] QUADRA L2 adds a second cutting module with a Ø350 mm blade moving horizontally on three axes and an end-milling module with a milling head of up to 200 mm diameter. [2]
elumatec's SBZ 628 XL saw group can make separating cuts at angles that its own data sheet states twice and differently — 22.5° to 157.5° in the feature summary and 22.5° to 127.5° in the saw description — and pivots continuously from 0° to 360° for notching and cuts from three sides. [3] Confirm which range applies to the configuration being quoted. The 2014 launch release specified a 550 mm blade with a 650 mm option, and stated that the 650 mm blade handles a profile 320 mm wide or high; it also notes kerf spreading after the cut to avoid re-cutting. [4]
Short parts are a separate question: elumatec lists fixed series of short pieces above 50 mm or 150 mm in single-bar mode and outfeed of short parts above 150 mm as options. [3]
Ask for the cut angle range, the largest section the blade clears at 90° and at your mitres, the shortest part the outfeed can handle, and whether end milling needs a second module.
03
Spindles that travel round the profile: 4 to 8 electrospindles, on-the-fly or stationary machining
Instead of a single spindle with a tool changer, these centres carry four to eight spindles on a module that rotates around the bar. Emmegi's QUADRA L1 module has 4 electrospindles of 5.6 kW in S1 at up to 24,000 rpm with ER 32 tool holders, optionally 6, and a disengagement slide with 110 mm stroke that moves spindles out of the work area; it machines one top, two side and one bottom face. [1]
elumatec's launch release gave the SBZ 628 router spindles 6.0 kW in S1 with HSK 40 C holders, four as standard and eight as an option, with a rotation module completing a full turn in less than two seconds and the next spindle starting while the current one finishes. [4] Thin-walled profiles are machined on the fly while the gripper's pusher axis moves the bar; thick-walled bars can instead be held on a second 400 mm X-axis and machined stationary. [4][3]
Editorial note: the spindle count limits how many different tools a part can see without a tool change, so list the distinct cutters your profiles need — drainage slots, lock and hinge pockets, drill sizes — before choosing four, six or eight spindles.
04
What to send for a through-feed bar processing centre
Paste it into your enquiry below or into an email to a maker, then replace every bracket.
Profiles: [systems, largest section h × w, wall thickness, drawings]
Bars: [shortest and longest bar; quantity per shift]
Parts: [shortest and longest finished part; end-cut angles; notches; end milling]
Machining: [operations per part; distinct tools; faces to machine]
Saw: [blade diameter; angle range; three-side cutting]
Outfeed: [part length range; labelling; sorting]
Site: [floor length available; loading and unloading side; climate control]
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
Share this page
Compiled and source-reviewed by the CNFX editorial team.
Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review
· Page last updated 13 October 2026
Buyer questions
What does a bar processing centre do that a machining centre does not?
It loads full-length bars from a magazine, machines and saws finished parts from them in one pass and unloads the parts automatically; Emmegi's QUADRA L1 handles bars up to 7,500 mm and elumatec's SBZ 628 XL 1,500–7,600 mm. [1][3]
How many spindles do they have?
QUADRA L1 has 4 electrospindles of 5.6 kW, optionally 6; SBZ 628 XL has up to 8 spindles positioned around the profile. [1][3]
What saw blade sizes are used?
QUADRA L1 uses a Ø600 mm blade from −48° to +245°; the SBZ 628 launch release listed 550 mm with a 650 mm option. [1][4]
Can thick-walled profiles be machined?
elumatec offers stationary machining on a second 400 mm X-axis for thick-walled bars, rather than on-the-fly machining. [4][3]
Sources and what still needs a direct check
Sources checked 2026-10-12. Layout, axes, spindle and saw data come from Emmegi's QUADRA L1 and QUADRA L2 product pages; loader, gripper, spindle and saw data for the SBZ 628 XL from elumatec's current data sheet (Spanish edition) and its 2014 SBZ 628 launch release.
