1) What Makes Up “Price” for a Dust Collector?
-
CAPEX (Purchase): Collector body (cartridge/bag/ housing / pulse-jet), fan, control panel (VFD / ΔP-based cleaning / remote), HEPA (polishing stage), explosion protection (isolation/venting/suppression), materials (CS / SS304/316L / FRP), silencers/acoustic enclosures, installation & ducting, acceptance docs (FAT/SAT, PAO/DOP, IQ/OQ…).
-
OPEX (Operation): Electricity (∝ Airflow Q × ΔP / efficiency), filter media/consumables, compressed air, downtime & maintenance, spare inventory.
Rule of thumb: Nail Q (airflow) and ΔP (static pressure) first. Q×ΔP drives fan size, filter area, energy, and overall system class.
2) Cost Drivers & Typical Adders (Reference Ranges)
Driver |
Common Options / Range |
CAPEX Impact |
Typical Adder (USD) |
Notes |
Airflow – Cartridge Units |
20–60 CMM / 60–150 CMM |
▲ |
US $ 5,600 – 31,000 |
Larger Q → bigger fan & filter area |
Airflow – Baghouse Units |
150–500 CMM |
▲ |
US $ 28,000 – 77,500 |
Medium / large outdoor systems |
High Vacuum (10–40 kPa) |
10–30 CMM |
▲ |
US $ 18,600 – 55,800 |
Central vacuum / long hoses |
Filter Upgrade |
ePTFE / Anti-static / Hydrophobic |
▲ |
+ US $ 620 – 5,600 |
Per number of cartridges or bags |
Secondary Filter |
HEPA H13 / H14 |
▲ |
+ US $ 1,900 – 7,800 |
HEPA box + test port + ΔP gauges |
Explosion Protection |
Isolation valve / flameless vent / suppression |
▲ |
+ US $ 6,200 – 27,900 |
Based on volume & hazard zone |
Material Upgrade |
SS304 / SS316L / FRP |
▲ |
+ 18 – 40 % |
Wetted parts or entire machine |
Control Level |
VFD / ΔP Auto-Cleaning |
▲ |
+ US $ 930 – 6,200 |
Energy saving & remote monitoring |
Noise Control |
Silencer / acoustic enclosure |
▲ |
+ US $ 2,500 – 9,300 |
For indoor or low-noise zones |
Installation & Ducting |
Main / branch lines / hoods |
▲ |
US $ 3,700 – 37,200 |
Depends on length & elbows |
Acceptance & Documents |
FAT / SAT / PAO / DOP tests |
▲ |
+ US $ 930 – 5,600 |
Compliance & audit requirements |
Ranges are indicative; actual quotes vary by brand/spec.
3) Airflow × Static Pressure ≈ 70% of the Price
(1) Source Airflow Q
QCMM=Vf (m/s)×A (m2)×60Q_{CMM} = V_f\,(m/s)\times A\,(m^2)\times 60QCMM=Vf(m/s)×A(m2)×60
-
Weighing/dumping face velocity: 0.5–0.8 m/s (use higher for fine dust)
-
Conveying velocity in ducts: 14–18 m/s general, 18–22 m/s metal chips
(2) Equivalent Length → ΔP
Straight pipe + vertical × (2–3) + elbows/tees (90° elbow ≈ 30–50D)
Add equipment losses (filter chamber / HEPA / silencer / hood) to get system ΔP.
(3) Power & OPEX
kW∝Q×ΔPη\text{kW} \propto \frac{Q \times \Delta P}{\eta}kW∝ηQ×ΔP
→ If ΔP doubles (e.g., 0.9 → 1.8 kPa at the same 60 CMM), fan class and cost jump a tier—and so does energy.
4) Typical Systems & Price Bands (Indicative)
-
Cartridge (20–150 CMM): US $ 5,600 – 31,000 + options (HEPA/ex-proof/material)
-
Baghouse (150–500 CMM): US $ 28,000 – 77,500 + installation/ducting
-
High-Vac Central Vacuum (10–30 CMM, 10–40 kPa): US $ 18,600 – 55,800 + isolation/venting
-
Wet Scrubber / Venturi (pump + demister): US $ 25,000 – 68,200 (material/chemistry dependent)
5) Quick Estimation Method (Copy into your RFQ)
-
List hood sizes & face velocity → compute Q per point.
-
Apply simultaneity factor (e.g., 0.7) → add 10–20% growth margin.
-
Draw the worst branch → compute L_eq & ΔP (include equipment losses).
-
Use Q × ΔP to select low/medium pressure or high-vac, and size the unit.
-
Add required options: ePTFE/anti-static/hydrophobic, HEPA, ex-proof, materials, noise, installation.
-
Get a price band; lower OPEX with VFD + ΔP-based cleaning.
6) Example Estimates (2025)
-
Case A|Small Batching Station (Cartridge Collector)
-
Specs: Q = 45 CMM, ΔP = 1.2 kPa, standard filter media, no HEPA, indoor
-
Estimated Price: US$ 5,600 – 14,900
-
Ducting (Medium Range): + US$ 3,100 – 7,800
-
Case D|High-Vacuum Central Vacuum System
-
Specs: Q = 24 CMM, Vacuum 10–20 kPa, High-vacuum filter + HEPA, flameless vent
-
Estimated Price: US$ 18,600 – 55,800
-
Case C|Woodworking Production Line (Outdoor Baghouse)
-
Specs: Q = 300 CMM, ΔP = 1.0 kPa, pleated bags, long duct network
-
Estimated Price: US$ 40,300 – 74,400
-
Installation & Ducting: + US$ 12,400 – 37,200
-
Case B|Batching Room with Clean Return Air (Cartridge + HEPA)
-
Specs: Q = 90 CMM, ΔP = 1.6 kPa, ePTFE + Anti-static, H13, indoor return
-
Estimated Price: US$ 10,800 – 40,300
-
Acoustic Enclosure: + US$ 2,500 – 6,200
All are indicative bands; final pricing depends on site and vendor quotes.
7) FAQ
-
Why can two 60-CMM quotes differ by 2×?
Different ΔP (ducts/elbows/hoses), A/C & media, HEPA, ex-proof, materials, installation. -
What info should I send for accurate quoting?
Use this guide’s checklist: airflow, ducting sketch, powder properties, materials, return air, acceptance. -
Cheap media vs. ePTFE membrane?
For fine/sticky dust or return air, ePTFE/nano stabilizes ΔP and reduces penetration—often lower TCO. -
Where to place HEPA?
Main filter → Fan → HEPA, with PAO/DOP integrity test & ΔP baseline. -
Do I always need an explosion-proof model?
Follow zoning & system safety: anti-static media + grounding/equipotential, isolation/venting/suppression, procedures; electrics by Zone.
8) Pitfalls to Avoid
-
Choosing by motor HP instead of the fan curve vs. system curve (Q×ΔP).
-
Using high-vac small flow for large hoods—poor capture.
-
Ignoring the worst branch—commissioning shows big flow loss.
-
No ΔP baseline & thresholds—maintenance by guesswork.
-
“Explosion-proof = change media only” mindset—must design isolation/venting/suppression + grounding as a system.
9) Decision Tree: Picking the Right Collector
-
Define process & powder (size/sticky/oily/combustible).
-
List inlets & face velocity → Q; draw worst path → ΔP.
-
Classify low / medium pressure / high-vac; choose cartridge / baghouse / high-vac.
-
Select media (ePTFE / anti-static / hydrophobic).
-
Decide on HEPA, ex-proof, materials, noise.
-
Include installation & acceptance scope in RFQ.
-
Use the price table to set a budget band, then refine with vendors.
10) Next Steps
-
Explore products: Cartridge | Baghouse | Cassette-type
-
Need engineering support? Contact us (attach P&ID or duct sketch for faster turn-around).
Bonus – RFQ Snippet (copy/paste)
-
Airflow: ____ CMM (per point & simultaneity ___)
-
Estimated ΔP: ____ kPa (worst branch L_eq = ____ m)
-
Media: ePTFE [ ] Anti-static [ ] Hydrophobic [ ]
-
HEPA: H13/H14 [ ] PAO/DOP test [ ]
-
Explosion Protection: Isolation [ ] Venting [ ] Suppression [ ] Grounding [ ]
-
Materials: CS / SS304 / SS316L / FRP
-
Noise target: ____ dB(A) | Controls: VFD, ΔP cleaning
-
Docs: FAT/SAT, PAO/DOP, IQ/OQ | Install & ducting: Yes/No