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3D printers, Business 3D Printers, Dental 3D Printers, Engineering 3D Printers, Manufacturing 3D Printers, Medical 3D Printers, Resin 3D printers, SLA 3D Printers · SLA

Kings 650Pro Industrial SLA 3D Printer – Marble Chassis | 26×26×16 in / 650×650×400 mm

Mid-format industrial SLA. Marble frame. Vacuum recoating. Built for high-volume printing of footwear lasts, dental arch batches, engineering prototypes and patterns — without stitching or Z-seam artifacts.

  • ✓ 26×26×16 in / 650×650×400 mm build chamber — nests a full tray of lasts or arches per run
  • ✓ Solid-state 355 nm Nd:YVO4 laser · 0.075–0.8 mm variable beam · 15.0 m/s max scan
  • ✓ Full-marble machine frame — thermal stability for ±0.1 mm part accuracy
  • ✓ Lead time: 2–3 months — on-site install, calibration & operator training included
Price held 7 days after order.
Install + training included 2-yr warranty incl. laser
15,000+ Teams served worldwide
200+ AM systems delivered · 23 countries
2 yr Warranty including the laser
<24h US-based engineer response

What your process engineer actually checks

High-volume parts in one build

The 26×26×16 in / 650×650×400 mm envelope nests a full tray of lasts, dental arches, or engineering prototypes in a single run — no mid-build stitching, no glued seams to sand out. Most desktop SLA caps XY at 200–300 mm.

Marble frame, measured accuracy

Recoater frame, elevator holder, and scan base are solid marble for thermal stability and vibration damping. Part accuracy holds ±0.1 mm under 150 mm and ±0.1%×L above — a fixed structural spec, not a calibration claim. 355 nm solid-state laser, 0.0005 mm vertical resolution.

An applications engineer on the line

Resin selection, print-profile setup, post-cure protocol — answered by engineers who work with these machines, not a remote ticket queue. Sub-24h response, NDA standard.

26×26×16 in / 650×650×400 mm
Build volume
355 nm
Solid-state Nd:YVO4 UV laser
15.0 m/s
Max scan speed
0.05–0.25 mm
Layer thickness
±0.1 mm
Part accuracy (L≤150 mm)
About this product

Kings 650Pro is a mid-format industrial SLA 3D printer — a 26×26×16 in / 650×650×400 mm build chamber on a full-marble frame with vacuum recoating — built for high-volume printing of footwear lasts, dental arch batches, engineering prototypes and patterns in a single run, without mid-build stitching or Z-seam artifacts.

Kings 650Pro industrial SLA 3D printer - mid-format resin production on a full-marble frame
Kings 650Pro — 26×26×16 in / 650×650×400 mm industrial SLA on a full-marble chassis.

Why teams specify the 650Pro

The four things a production engineer checks before committing an industrial SLA platform.

High-volume parts in one build

The 26×26×16 in / 650×650×400 mm envelope nests a full tray of lasts, dental arches or engineering prototypes in a single run — no stitching, no glued seams to sand out. Most desktop SLA caps XY at 200–300 mm.

Full-marble frame, measured accuracy

Marble across the recoater frame, elevator holder and scan base damps vibration and holds temperature — part accuracy holds ±0.1 mm under 150 mm, ±0.1%×L above, across the whole bed.

Solid-state 355 nm laser, variable beam

An Nd:YVO4 355 nm UV laser with a 0.075–0.8 mm variable beam narrows for detail and widens for fast flood-fill in the same job — scanning to 15.0 m/s.

Intelligent vacuum recoating

Position-aware vacuum recoating lays a uniform resin film with no blade contact on the part surface — consistent layers regardless of geometry.

How Additive Plus delivers your 650Pro

Configured to your resins, installed and calibrated on-site, printing on day one.

Step 01
Configure resin & profile

We match the qualified resin family — ABS-like, durable, high-toughness, rubber-like or clear — to your parts. Parameters are preset at the machine level.

Step 02
Install, calibrate & train

A factory-trained technician handles setup, laser calibration and operator training on-site in the US — not a drop-ship.

Step 03
Benchmark before you commit

Send your hardest geometry and target resin — we print a benchmark part on industrial SLA so you judge surface finish and accuracy in hand.

Qualified resin library

Resin Type Typical use
KS908C ABS-like General engineering, functional prototypes
KS408A Durable ABS Snap-fit assemblies, jigs and fixtures
KS608C High-toughness Drop-test and impact-resistant parts
KS198S Rubber-like (flexible) Gaskets, soft grips, wearables
KS168C / KS158T Clear / UV-clear Optics mock-ups, fluid-flow housings

Print parameters are preset for standard resins — no open-parameter development required. Ask our applications team about biocompatible and castable options for the 650Pro platform. See the full specification table below.

Typical applications

Where the 650Pro’s bed nests a full tray per run.

Footwear
Full lasts and midsole cavities, batched per build
Medical & dental
Full-arch models, surgical guides, orthotics
Automotive
Interior trim, connectors, functional prototypes
Industrial patterns & molds
Casting patterns, vacuum-form and layup tooling
Animation & sculpture
Character busts and prop patterns
Jigs & fixtures
Durable-ABS tooling and assembly aids

Kings 650Pro on the production floor

Not sure the 650Pro is the right size?

Same industrial SLA platform and marble-frame accuracy, different build envelopes.

Tell us your largest part and target resin — an applications engineer will confirm the 650Pro fits or point you to the right size in the Kings SLA range. Sub-4h reply, NDA standard.

Why source the Kings 650Pro through Additive Plus

  • Authorized US representative for Kings3D — US-based sales, spare-parts inventory, warranty coverage and direct factory escalation. No grey-market lead times.
  • Factory-trained applications engineers — resin parameter review, print-profile setup and post-cure protocol development, answered by engineers who have run the machine.
  • Hands-on SLA experience — our in-house 3D printing service runs industrial SLA for client parts, so support comes with first-hand knowledge of photopolymer failure modes.
  • Install, calibration and on-site training included — dialed and printing on day one, not a drop-ship.
  • 2-year warranty including the laser — manufacturer-backed, supported through Additive Plus. Leasing and financing available; sub-24h response.
Brand Kings3D
Build Volume 26x26x16 in / 650x650x400 mm
Rated Power Consumption 1.5KVA
Technology SLA
Laser Type Solid-state frequency tripled Nd: YV04
Wavelength 0.000014in 355nm
Resin Surface Power ≥300 mW
Scanning Mode Germanic galvanometer scanner
Variable Beam System Galvo/Closed-loop
Beam Size 0.003-0.03in 0.075-0.8mm(Variable Beam)
Max Scanning Speed 15.0m/s
Motion Control System Closed-loop
Machine Control Software KINGS 3D control software
lnput Data File Format STL/SLC
Operating System Windows 7/10
Network Type and Protocol Ethernet,TCP/IP
Electrical Requirement 200-240VAC 50/6OHz, single-phase,10A
Ambient Temperature 20-26C(72-79F)
Relative Humidity <40%,non-condensing
First Tank Resin About 529lb 240kg
Main Sturcture Marble recoater frame, marble elevator holder and marble scanning system base
Coating Mode Intelligent position vacuum recoating
Vertical Resolution Ratio 0.00002in 0.0005mm
Repeat Positioning Accuracy ±0.004in ±0.01mm
Layer Thickness 0.002in~0.01in 0.05mm~0.25mm
Printing Materials Resins

Product videos

Print a benchmark part before you buy

Send your STL We print it in-houseYou evaluate the real part

Send us your hardest geometry. We print it on an industrial SLA system in your target resin and ship you the part — so you evaluate surface finish and accuracy in hand, not from a spec sheet.

From teams running the Kings 650Pro

Unedited feedback from footwear, dental, and engineering shops.

★★★★★ 4.9 / 5 · 24 reviews
★★★★★

We nest a full tray of lasts per run now. Surface off the marble frame is consistent enough that our grinders barely touch it, and throughput went up without adding machines.

DR
Daniel R. Footwear Prototyping Lead · Athletic footwear studio
★★★★★

Accuracy holds across the whole bed. We measured a full-arch batch and everything came in inside ±0.1 mm. The vacuum recoater means no witness lines on flat surfaces.

PN
Priya N. Dental Lab Manager · Full-service dental lab
★★★★★

Install and calibration were done in a day and the machine was printing production parts by the afternoon. Having engineers who actually run SLA answer the phone made qualification quick.

MT
Marcus T. Additive Manufacturing Engineer · Industrial prototyping shop

Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

What build volume does the Kings 650Pro offer?
The Kings 650Pro prints at 650×650×400 mm (26×26×16 in) — a mid-format square envelope that nests a full tray of shoe lasts, dental arches, or engineering prototypes per run without mid-build stitching or Z-seam artifacts.
Which resins are qualified for the Kings 650Pro?
Kings3D qualifies ABS-like (KS908C), durable ABS (KS408A), high-toughness (KS608C), rubber-like (KS198S), and clear (KS168C, KS158T) resins. Biocompatible and castable options are available — contact our team for the current validated list.
What does installation include, and what is the lead time?
Lead time is typically 2–3 months from order placement. Installation includes on-site setup, laser calibration, resin loading, and operator training by a factory-trained technician. Service and maintenance contracts are available.
Can I test the Kings 650Pro before committing?
Yes. Send your part files and our in-house 3D printing service will print samples in the resin of your choice, so you can evaluate surface finish and accuracy on a real part before you commit. For qualified buyers we can also arrange an on-site demo or a live print review of the Kings 650Pro before purchase.
What layer thickness and surface finish does the Kings 650Pro produce?
The Kings 650Pro prints at 0.05–0.25 mm layer thickness with 0.0005 mm vertical resolution. Its intelligent-position vacuum recoater lays a uniform resin film with no blade contact against the part, so flat surfaces come off the machine without witness lines or Z-seam artifacts. Surface finish is smooth enough that most lasts, dental models, and patterns need only light hand-finishing before use or moldmaking.
Why does the Kings 650Pro use a marble frame?
The Kings 650Pro's recoater frame, elevator holder, and scanning-system base are solid marble. Marble's thermal stability and vibration damping keep the optical path and build platform aligned through long jobs, which is what holds part accuracy at ±0.1 mm for features under 150 mm and ±0.1%×L above that. It is a structural property of the machine, not a calibration setting that drifts between builds.
What post-processing does the Kings 650Pro require, and does Additive Plus supply it?
Parts printed on the Kings 650Pro are drained, washed to remove uncured resin, then UV post-cured to reach full mechanical properties. Additive Plus can spec and supply matched wash-and-cure equipment sized to your parts with the machine, and our engineers will set the post-cure protocol for each qualified resin.

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Order Kings 650Pro Industrial SLA 3D Printer – Marble Chassis | 26×26×16 in / 650×650×400 mm direct, or talk to materials engineer

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