Saddle Shape
Size

Dimensions

±0.075”

% Free Area

(approx.)

Weight
lb/ft³

(±10%)

Chemical Composition

(±2%)

Heat Storage
Capacity

BTU/lb

Pressure Drop

"wc @ 250 afpm

Continuous RTO Combustion Chamber Temperature
ULTRA Jr. Chemical StonewareNo. 11.41 (L)
0.66 (W)
0.75 (H)
0.12 (Tk)
8043

22%-26% AI₂O₃
75%-71% SiO₂

3% Other

0.22131800℉ / 982℃
ULTRA
​Chemical Stoneware

No. 2

1.75 (L)
1.20 (W)
0.90 (H)
0.18 (Tk)

80

37

22%-26% Al₂O₃
75%-71% SiO₂

3% Other

0.22

10

1800℉ / 982℃

High Alumina

ULTRA Porcelain

No. 21.75 (L)
1.20 (W)
0.90 (H)
0.18 (Tk)
803730%-35% AI₂O₃
67%-62% SiO₂
3% Other
0.22
10
2200℉ / 1204℃
Super ULTRA
​Alkali-Resist Porcelain
No. 21.75 (L)
1.20 (W)
0.90 (H)
0.18 (Tk)
8037

45%-65% Al₂O₃
53%-33% SiO₂

2% Other

0.22
10
2200 - 3000℉
1204 - 1648℃

Random Packed Specifications - Cell Stone ULTRA Configuration
Patented Design

Request Information

Cell Stone ULTRA Configuration

Cell Stone ULTRA Options

All Include Same Low Pressure Drop Patented Configuration

DescriptionNominal SizeApproximate WeightFree AreaAI₂0₃ %Si0₂ %Approximate #/ft³Note
ULTRA No. 143 lb/ft³78%22-2671-751480Compact Low-boy RTOs
ULTRANo. 237 lb/ft³81%22-2671-75
1297Typical RTOs

High Alumina

ULTRA

No. 236 lb/ft³81%
30-3562-67
1280Slightly Caustic

Super

ULTRA

No. 236 lb/ft³81%
45-6533-53
1440Alkali Environment
Cell Stone Ultra Low Pressure Drop Saddle
Cell Stone Ultra Low Pressure Drop Saddles

​​​​​​​​​​​Manufacturer and Supplier of Heat Recovery Media Solutions for Regenerative Thermal Oxidizers

CELL-STONE

Cell Stone ULTRA -

Low Pressure Drop Media


As a type of Random Packed Media, ULTRA was designed by Cell Stone as a competitive heat recovery media for new and aftermarket RTOs.  It was also designed to replace the standard ubiquitous 25mm / 1" saddle. Many of Cell Stone’s customers are loyal repeat users that have switched from other saddles…structured media and/or monolith. 

Cell Stone’s patented “ULTRA” low pressure
drop random packed heat recovery media is the only heat transfer product designed and manufactured specifically to meet and exceed the dynamic challenges of today’s regenerative thermal oxidizers.

Individual piece configuration is designed to generate a shock resistant interlocking matrix where flow resistance is brought to a minimum, and the surface area is expanded to generate a heat recovery thermal efficiency unparalleled by other types of heat recovery media.

Plugging Issues?  Much success using Cell Stone ULTRA has been demonstrated in the following core industry sectors where particulate such as silica and carbonized residuals have plugged RTO equipment in the past:


  • Wood and Lumber
  • Printing
  • Wastewater  


Cell Stone ULTRA is manufactured and offers the choice of:

  • Standard Chemical Stoneware
  • Severe Duty Porcelain
  • Fertilizer
  • Chemical
  • Petro-Chemical