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CI-701 Cascade Impactor

CI-701 Cascade Impactor

The Cascade Impactor is a seven stage jet filter assembly that removes particles by diameter. It is able to filter from 17 to 0.2 microns in eight size classifications and is unaffected by moisture. The pre-cutter assembly allows the cascade impactor to be used horizontally, meaning it can attach to nearly any standard assembly. The pre-cutter includes six nozzles (1/8”, 3/16”, 1/4”, 5/16”, 3/8”, and 1/2”) to ensure correct flow rates.

CI-701K Cascade Impactor Kit includes 7 stage impactor, a PRA-K pre-cutter, nozzles, interconnecting tube, glass fiber filters (45 mm, 47 mm and GFDN filters) and foil collection plate.

SKU: CI-701 Category:


CI-701 Schematic

Part #Description
CI-7017 Stage Cascade Impactor.
CI-701KCascade Impactor Kit.

CI-701 7 Stage Cascade Impactor:

Part #Description
CI-JS12/0960Cascade Impactor Stage 2 Jet.
CI-JS90/0310Cascade Impactor Stage 3 Jet.
CI-JS110/0200Cascade Impactor Stage 4 Jet.
CI-JS110/0135Cascade Impactor Stage 5 Jet.
CI-JS90/0102Cascade Impactor Stage 6 Jet.
CI-JS40/0102Cascade Impactor Stage 7 Jet.
CI-CYLINDERCascade Impactor Cylinder.
CI-CAPINCascade Impactor Inlet Cap.
CI-CAPOUTCascade Impactor Outlet Cap.
CI-FCCascade Impactor Filter Collar.
CI-CP45Impactor Collection Plate #1.
CI-CP57/25Impactor Collection Plate #2-7, 2.25 in (57mm) x 1 in (25.4mm).
SFA-47SS47mm Stainless Steel Filter Support Screen.
O-038VViton O-Ring for Cascade Impactor Outlet Cap.
O-139VViton O-Ring for Cascade Impactor.
O-229VViton O-Ring for Cascade Impactor Inlet Cap.

CI-701k Cascade Impactor Kit:

Part #Description
CI-7017 Stage Cascade Impactor.
CI-FPSet of 7 lightweight stainless steel foil collection plate inserts.
PRA-N41/8" Pre-Cutter Nozzle, Stainless Steel, Size 4.
PRA-N63/16" Pre-Cutter Nozzle, Stainless Steel, Size 6.
PRA-N81/4" Pre-Cutter Nozzle, Stainless Steel, Size 8.
PRA-N105/16" Pre-Cutter Nozzle, Stainless Steel, Size 10.
PRA-N123/8" Pre-Cutter Nozzle, Stainless Steel, Size 12.
PRA-N161/2" Pre-Cutter Nozzle, Stainless Steel, Size 16.
PRA-OT10Pre-cutter Outlet Tube.
PRA-BODYPre-Cutter Body.
PRA-CAPPre-Cutter Cap.
PRA-CAPOUTPre-Cutter Cap with Union. (Outlet)
PM2.5-10 CASEPM2.5-10 Case with Foam Insert.
10MSC8N-S5/8TU-1/2MNPT, Stainless Steel Connector.
GFDN5.72cm Glass fiber filters for the CI-700 Cascade Impactor, 2.25" OD x 1" ID, 100 filters.
GF-4545mm Glass Fiber Filters, 100/Box. (Whatman 934AH)
GF-4747mm Glass Fiber Filters, 100/box. (Whatman 934AH-4.7cm)
O-024VViton O-Ring for PM 2.5 Cyclone, Exit End, And Pre-Cutter. (1-1/4ODX)
N-105/8" Stainless Steel Tube Nut.
10FF-S5/8" Stainless Steel Ferrule Front.
10FB-S5/8" Stainless Steel Ferrule Back.
AZNI-4Premium Grade Antiseize, Nickel Based, 1/4 oz Tube, -65F to 2600F

Particle Sizing Data Reduction Software

Windows-based Cascade Impactor Data Reduction System (WINCIDRS) calculates particle size distribution of stack particulate matter (PM) taken with the Cascade Impactor, as well as particle sizing cyclones. Developed by stack particle analysis experts, this software reduces the time and chances of error involved with reducing particle sizing data.

Functions Cascade Impactor Kit Software Visual

  • Calculates each stage’s aerodynamic cut point and DP50, needed to reduce particle size data.
  • Calculates and Stores ancillary data, such as dry gas composition and moisture content.
  • Reduces velocity traverse data.
  • Aids in selection of sample flow rates and ideal nozzle size.
  • Calculates flow rates and dwell times required for PM10 and PM2.5 sampling traverses.
  • Calculates fractional efficiencies of control devices from samples obtained at inlets and outlets.


Additional information

Part Number

CI-701, CI-701-K, CI-FP