Conservative
36 jobs/month
60% of expected volume
1.4 months
Estimated payback
- Estimated monthly revenue
- $1,742
- Estimated monthly contribution
- $771
- Estimated first-year ROI
- 882.8%
ACMER ASCARVA 4S 500W
Best for · Budget 400 mm CNC with touchscreen control
Purchase options
Current price
$588.00
$898.00
In stock at merchant
Open 400 × 400 mm CNC router package with a 500W spindle upgrade and 3.5-inch touchscreen.
Business economics
Compact estimates for this machine. Catalog price is a merchant fact when published. Operating cost, labor, materials, and volume are editable assumptions—not nameplate wattage, rated throughput, or promised revenue.
- Catalog price
- Merchant / manufacturer fact
Current price
$588.00
$898.00
- Cost profile
- Desktop CNCEquipmentSelect assumption · operating $45/mo · not from a spec sheet
Complete setup cost
Total investment is more than sticker price. Amounts are catalog facts, cost-profile assumptions, or quotes you enter — never guessed accessory SKUs.
- Equipment price
- $588
- + Required setup
- $120
- + Initial consumables
- $0
- + Other startup costs
- $340
- Estimated initial investment
- $1,048
Catalog price plus priced setup and startup assumptions. Unpriced lines are omitted until you enter a quote.
Required
Required
Optional
Recommended
Recommended
Recommended
Recommended
Recommended
Optional
Recommended
Optional
Optional
Why the total investment can be higher than the machine price
A desktop CNC is the frame and spindle. Bits, dust collection, and CAM software are the rest of the shop.
- Dust collection is recommended even on a small router — chips are not optional.
- A starter bit set and spoilboard are usually separate purchases.
- CAM seats may be subscription or perpetual; enter the amount you will actually pay up front.
Estimated cost/job
$22.92
Materials, labor, and allocated operating cost
Estimated monthly contribution
$1,275
After materials, labor, and monthly costs
Estimated payback
0.8 months
Complete setup investment ÷ monthly contribution
Estimated first-year ROI
1459.9%
Annual contribution ÷ total investment
All four figures are estimates under your expected jobs/month—not accounting results.
Estimates
Test your assumptions
Conservative, Expected, and Optimistic change monthly jobs (utilization vs the volume you entered). Selling price, purchase price, labor, and materials stay as entered. Utilization is not rated machine capacity. All figures are estimates.
- 60 jobs/month expected
- $45.83 average selling price
- $588 equipment purchase
- $25.00/hour labor
- $9.00 materials/job
- $600 estimated monthly labor
Expected
60 jobs/month
100% of expected volume
0.8 months
Estimated payback
- Estimated monthly revenue
- $2,750
- Estimated monthly contribution
- $1,275
- Estimated first-year ROI
- 1459.9%
Optimistic
84 jobs/month
140% of expected volume
0.6 months
Estimated payback
- Estimated monthly revenue
- $3,758
- Estimated monthly contribution
- $1,779
- Estimated first-year ROI
- 2037.0%
Bar length tracks estimated monthly contribution (higher is stronger). Payback and ROI are estimates, not accounting results.
What changes the decision?
One shock at a time versus your expected assumptions. Each row reuses the same payback engine.
+25% utilization
0.7 months
Jobs/month vs your expected volume — not rated machine capacity
0.2 months faster
-10% selling price
1.0 months
Shock to the selling price currently used
0.2 months slower
+20% equipment cost
0.9 months
Shock to purchase price, not setup
0.1 months slower
+20% labor cost
0.8 months
Shock to hourly labor rate
0.1 months faster
+20% material cost
0.8 months
Shock to materials per job
0.1 months faster
Estimates are based on the information you provide and should not be considered financial advice. We do not store your calculator inputs on a server.
Key specifications
- Work area
- 400 × 400 mm
- Spindle power
- 500 W
- Maximum engraving speed
- 10000 mm/min
- Controller
- 3.5 in touchscreen
- Enclosure
- open
- Machine type
- cnc-router
EquipmentSelect Score
7.2 / 10
Compelling 400 mm preorder value once the 500W package is locked explicitly.
Shortlist the ASCARVA 4S 500W pack for low-cost 400 mm work when preorder timing is acceptable. The selected offer intentionally excludes the cheaper 70W base configuration.
Affiliate commission and merchant relationships do not affect this score. It is editorial fit, not modeled profit or payback.
Why
One editorial judgment across these dimensions—not five separately calculated sub-scores.
- Capability
- Value
- Business fit
- Production potential
- Ecosystem/support
- 400 × 400 mm work area with selected 500W upgrade
- 3.5-inch touchscreen and manual Z control
- Dust-shielded motion and pre-assembled delivery
Potential drawbacks
- Preorder product with estimated shipping rather than immediate fulfillment
- Open frame still requires external dust collection and guarding
- Published Z travel is not clear enough to use as a comparison claim
Best for
Budget 400 mm CNC with touchscreen control
- Wood and acrylic projects that need a 400 × 400 mm work area
- Buyers selecting the 500W package rather than the weak base spindle
- Operators willing to accept preorder timing for a low entry price
Not ideal for
- Preorder product with estimated shipping rather than immediate fulfillment
- Open frame still requires external dust collection and guarding
- Published Z travel is not clear enough to use as a comparison claim
Technical specifications
Machine
| Work area | 400 × 400 mm |
|---|---|
| Maximum engraving speed | 10000 mm/min |
| Motion protection | dust shield |
| Machine type | cnc-router |
Spindle
| Spindle power | 500 W |
|---|
Workflow
| Controller | 3.5 in touchscreen |
|---|---|
| Z adjustment | manual knob |
| Assembly | pre-assembled |
Purchase
| Availability | preorder |
|---|
Hardware
| Enclosure | open |
|---|
Alternatives
View category
TwoTreesEquipmentSelect Score 7.5/ 10TwoTrees TTC450 Ultra
Best for · Higher-power 460 mm desktop CNC with 500W spindle
High-performance open desktop CNC with a 500W spindle, 460 × 460 × 100 mm work area, and dual CNC/laser modes.
Work area
460×460×100 mm
Spindle power
500
Engraving precision
0.05 mm
Starting at
$699.00
$999.00
SnapmakerEquipmentSelect Score 8.1/ 10Snapmaker Artisan 3-in-1
Best for · Modular enclosed Artisan 3-in-1
Enclosed Snapmaker Artisan modular 3-in-1 (FDM + laser + CNC). Laser research uses the 40W diode module on a 400 × 400 m…
Power
40 W
Work area
400×400 mm
Laser
Diode
Starting at
$2,099.00
$2,999.00
TwoTreesEquipmentSelect Score 7.1/ 10TwoTrees TTC450 Pro
Best for · Large open GRBL CNC for wood-focused shops
Open desktop CNC router with a 460 × 460 × 80 mm work area, GRBL control, and expandable spindle, laser, and rotary opti…
Work area
460×460×80 mm
Enclosure
Open
Overall power
72
Starting at
$499.00
$639.00
Comparison suggestions
Shortlist these machines with ACMER ASCARVA 4S 500W to clarify tradeoffs.
Buy
Where to buy
Sorted by landed price when merchants publish one. The recommended click is the tracked primary offer — not always the lowest number.
| Merchant | Price | Stock | Last checked | Buy |
|---|---|---|---|---|
| ACMERRecommendedAffiliate offer | $588.00 | In stock | Not recorded | Check price |
| ToolsTodayAffiliate offer | See merchant | — | Not recorded | Check price |
| ToolsTodayAffiliate offer | See merchant | — | Not recorded | Check price |
EquipmentSelect may earn a commission when you buy through links on our site, at no extra cost to you. Recommendations are based on specifications, use cases, and our independent assessment. EquipmentSelect does not process transactions.
Related guides
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How to Choose a Business CNC Router Without Overbuying
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Category
- CNC Routers & Desktop CNC
Browse the full category
Comparisons
- ACMER ASCARVA 3S vs ASCARVA 4S
Compare ACMER's compact 300 × 180 mm ASCARVA 3S with the 400 × 400 mm 4S 500W package—same spindle class, different envelope and availability.
Buying guides
- How to Choose a Business CNC Router Without Overbuying
A practical framework for matching CNC work area, rigidity, spindle class, materials, and shop overhead to paid work.
Use cases
- Best Desktop CNC Routers for Wood Products
Wood CNC work starts with the blanks you ship: plaque size, relief depth, and fixture margin. Shortlist envelope and spindle class before chasing a larger frame you will not fill.
Budget guides
- CNC Routers Under $1,000
Under $1,000 covers the live desktop CNC shortlist: compact 500W, 400 mm 300W, and the 400 mm 500W ACMER pack. Large-format sheet routers sit well above this band.
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