Our Pick: Sienci LongMill MK2 12x12
It wins 6 out of 9 comparison categories while costing $50 less.
Specs are evenly split between both machines. Both are similarly priced. Sienci LongMill MK2 12x12 leads by 7 points overall — here’s where those points come from:
Benchmark Scores
Side-by-side score comparison across all five benchmark dimensions.
Overall
Sienci LongMill MK2 12x12
Pros
- Excellent documentation and beginner-friendly setup from Sienci
- Anti-backlash ACME lead screws on all axes
- gSender is a polished, purpose-built CNC sender
- Active community forums with responsive manufacturer support
- Generous Z-axis travel of 114mm
Cons
- Small 12x12 inch work area for a machine at this price
- Router not included adds $100+ to total cost
- Larger LongMill models offer better value per square inch
- V-wheel motion system rather than linear rails
- Lead screws are slower than ball screws
Lunyee 4040 Titan CNC Router
Pros
- 800W brushless spindle is a significant upgrade over budget 500W motors
- Reinforced steel gantry improves rigidity over other Lunyee models
- Reasonable price for an 800W spindle machine
- Can handle hardwoods with appropriate feeds and speeds
- ER11 collet accepts standard endmill sizes
Cons
- Lunyee brand still has limited customer support infrastructure
- 400x400mm work area is small for an $850 machine
- Documentation quality remains below competitors like Sainsmart or Sienci
- Lead screws can develop backlash over extended use
- Spare parts availability is uncertain
Verdict
Sienci LongMill MK2 12x12 wins this comparison with 6 categories to 3.
It wins 6 out of 9 comparison categories while costing $50 less.
Where to Buy
Price-first merchant links with the clearest reason to click first.
Sienci LongMill MK2 12x12
$800Lunyee 4040 Titan CNC Router
$850As an Amazon Associate I earn from qualifying purchases. Affiliate links may earn a commission at no extra cost.
Frequently Asked Questions
What is the difference between Sienci LongMill MK2 12x12 and Lunyee 4040 Titan CNC Router?
The Sienci LongMill MK2 12x12 ($800) features a 710W spindle with a 305×305mm work area and a Steel and aluminum with anti-backlash lead screws frame. The Lunyee 4040 Titan CNC Router ($850) features a 800W spindle with a 400×400mm work area and a Aluminum extrusion with reinforced steel gantry frame. Overall, the Sienci LongMill MK2 12x12 wins more comparison categories.
Which is better value for money — Sienci LongMill MK2 12x12 or Lunyee 4040 Titan CNC Router?
The Sienci LongMill MK2 12x12 is $50 cheaper at $800 vs $850. Our value scores rate the Lunyee 4040 Titan CNC Router higher at 60/100.
Which router is easier to set up and use?
Based on our ease-of-use benchmarks, the Sienci LongMill MK2 12x12 scores higher (88/100 vs 60/100). Both support gSender, UGS, CNCjs among other software options.