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Black metal-frame FDM 3D printer with lattice glass bed, dual blower fans, 4.3 inch touch screen, open gantry design

LONGER

LONGER LK5 Pro 3D Printer 300x300x400mm Dual Blower Kit

SKU CH-R5TP-XNH68

FDM 3D printer with a 300 × 300 × 400 mm build volume, dual blower cooling, lattice glass bed and power-loss resume printing

  • Interface typeSD card, USB
  • Number of extruders1
  • Construction materialMetal
  • Chassis materialLattice glass
  • Technology typeFDM (Fused Deposition Modeling)
  • Build size11.8 in*11.8 in*15.7 in
  • Large 300 x 300 x 400 mm build volume enables bigger single-part prints
  • Dual blower kit cools extruded filament faster for cleaner overhangs
  • Resume printing restarts from the last position after power loss or filament run-out
  • Lattice glass platform heats quickly and holds prints firmly without warping
  • 3 inch colour touch screen gives direct control without a connected computer

Large build volume for tall prints

The LONGER LK5 Pro offers a 300x300x400mm build area, giving makers and hobbyists room for tall, single-piece models. Its FDM technology and single 0.4mm nozzle handle 1.75mm filament at layer heights from 0.1 to 0.4mm. A filament detector and heated lattice glass platform improve first-layer adhesion and reduce warping.

SD and USB workflow with modest speed ceiling

Files transfer via TF card or USB cable, and the 4.3-inch colour touch screen controls slicing output in G-Code, STL or OBJ format. The printer tops out at 120mm/s, though the supplier suggests 60-80mm/s for reliable results. Operation is limited to 10-30°C ambient temperature and 20-50% humidity, so a stable indoor environment is required.

Metal frame with dual blowers and removable glass

The metal chassis carries a lattice glass plate that heats quickly, holds parts firmly and releases them easily once cooled. A dual blower kit directs extra airflow at the nozzle for faster layer solidification. Open-source firmware lets users customise behaviour, while resume printing recovers from power loss or filament run-out without restarting the job.

How it compares

Measured against everything we stock in Laser Engraving Machines & Parts, at today’s prices. Recalculated every night.

Price $248.99
Cheaper than about 64% of the 139 comparable items (median $334.99).

Specifications

Product
Brand nameLonger
Model nameLK5 Pro
Part number202202
Product type3D Printer
Product colorBlack
Performance
Maximum working speed120 mm/s
Connectivity
Technology typeFDM (Fused Deposition Modeling)
Ports & slots
Interface typeSD card, USB
Power
Power source24 V
Size & build
Construction materialMetal
Chassis materialLattice glass
Build size11.8 in*11.8 in*15.7 in
Layer thickness0.1-0.4 mm
Product dimensions580 × 540 × 663 MM
Product weight11KG
Environment & compliance
Operation temperature10-30?
Software
Software bundleCura,repetier-host
More details
Number of extruders1
Print jetsSingle Jet
Filament diameter1.75 mm
Jets diameter0.4 mm
Operation system requirementsWindows,Linux,MAC

Questions about this item

How do I choose between the LK5 Pro and another model if I need the 300x300x400mm build volume?

The LK5 Pro is the only model in this listing with a 300x300x400mm build volume; other models would have different dimensions.

What does the 120mm/s maximum speed mean for my actual prints?

The 120mm/s is the peak mechanical limit; the manufacturer suggests printing at 60-80mm/s for reliable results with the single 0.4mm nozzle.

What does the SD card and USB interface cap in practice?

You can print directly from an SD card or via USB cable without a constant PC connection; file formats supported are G-Code, STL and OBJ.

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