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AF0646 Series Chop Check Piston Pumps

  • 46:1 Ratio
  • 6" Air Motor
  • Maximum Flow Rate: 1.8 GPM (6.9 l/min)
  • Maximum Fluid Pressure: 7,485 psi (516 bar)
  • Lower pump material available in carbon steel or stainless steel

Chop-Check pumps are designed to move medium-to-high viscosity fluids in difficult applications.

The heavy-hitters of the line, ARO® Chop-Check pumps are designed to move medium-to-high viscosity fluids ranging from 15,000 cPs to more than 1,000,000 cPs, and at delivery rates up to 12.2 gpm (46.3 l/min).

Applications advantages of Chop-Check:

Extrusion: Chop-Check pumps are workhorses—able to deliver viscous adhesives, sealants, caulking, and heavy lubricants to the application point at the desired pressure and flow rate.

Transfer & Supply: Depending on the model, some Chop-Check pumps are capable of achieving flow rates up to 12.2 gpm (46.3 l/min), ensuring efficient transfer of heavy greases, inks, and other viscous materials.

Materials advantages of Chop-Check:

Chop-Check pumps have a primer piston to ‘feed’ material into the pump. They are often used in conjunction with a follower plate to force material down. This prevents loss of prime due to channeling—a condition where the pump inlet becomes surrounded by air due to the cavity formed when a high viscosity material does not level off when removed (slumpability).

  • Stringy materials: Chop-Checks have mechanical, flat checks to overcome materials that resist cut-off and adhere to themselves.
  • Tacky materials: Chop-Check pump options come in high ratios to generate the fluid pressure needed to move materials that will adhere to hoses and equipment while wet.
ARO-En-Product-Photo-af0646-V1

Available Models

Pump Model**

Lower Pump Model Material

Plunger Material

Upper Packings

Lower Packings

Lower Pump Model

Pump Service Kit

AF0646S11FF47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

UHMW-PE

UHMW-PE

66266-C43-B

AF0646S11GF47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

UHMW-PE/Glass Filled PTFE (Staggered)

UHMW-PE

66266-P43-B

AF0646S11KK47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

Glass Filled PTFE

Glass Filled PTFE

66266-343-B

AF0646S11HH47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

UHMW-PE/Leather (Staggered)

UHMW-PE/Leather (Staggered)

66266-G43-B

AF0646S11RK47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

Glass Filled PTFE/UHMW-PE (Staggered)

Glass Filled PTFE

66266-R43-B

AF0646T11FF47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

UHMW-PE 

UHMW-PE 

1380T11FF47 

K1380T11FF00 

AF0646T11KK47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Glass Filled PTFE 

Glass Filled PTFE 

1380T11KK47 

K1380T11KK00 

AF0646T11RK47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Glass Filled PTFE/ UHMW-PE (Staggered) 

Glass Filled PTFE 

1380T11RK47 

K1380T11RK00 

AF0646T11SS47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Virgin PTFE 

Virgin PTFE 

1380T11SS47 

K1380T11SS00 

**Add “-1” to Model Number for Ball Valve Regulator







Ratio

46:1

Stroke

6” (15.24 cm)

Material Inlet

Flange Mount

Material Outlet

1” NPT(F)

Air Inlet (female)

1/2” NPT(F)

Air Inlet Pressure Range psi (bar)

0 - 150 (0 - 10.3)

Fluid Pressure Range psi (bar)

0 - 7485 (0 - 516.2)

Max Cycles/Minute

60

Displacement/Cycle cu in (cm3)

6.97 (113)

Cycles/gal (L)

33.1 (8.8)

Flow @ 60 Cycles gpm (l/min)

1.8 (6.9)

Noise Level @ 60 psi dBA

84.7

Weight* lb (kg)

67 (30.4)

Container Suitability

Remote Mounting

Dimensions

A* in (mm)

42.18 (1071.47)

B in (mm)

18.91 (480.34)

C in (mm)

12.66 (321.59)

ARO-En-Product-Photo-af0646
ARO-En-Product-Photo-af0646-V2

SPX Series Single Post Ram - 5 Gallon (18.93 Liters)


ARO-En-Product-Photo-af0646-V3

TPX Series Two Post Ram - 5 Gallon (18.93 Liters)

ARO-En-Product-Photo-af0646-V4

TPX Series Two Post Ram - 55 Gallon (208 Liters)


ARO-En-Product-Photo-af0646-V5

FMX Series Floor Mount Bulk

ARO-En-Product-Photo-af0646-V6

Model Number

Package Type

Pump Model

Ram/Lift Model

Follower

Follower Seal Description

Material

CARBON STEEL PACKAGES







SP0646S21FF47E32

5 Gallon Single Post Ram

AF0646S11FF47

RM051S-C-B

67342-1

Single Lip

Polyurethane/Urethane

TP0646S21FF47E32

5 Gallon Two Post Ram

AF0646S11FF47

RM052S-C

67342-1

Single Lip

Polyurethane/Urethane

TP0646S51FF47AA2

55 Gallon Two Post Ram

AF0646S11FF47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0646S51GF47AA2

55 Gallon Two Post Ram

AF0646S11GF47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0646S51KK47AA2

55 Gallon Two Post Ram

AF0646S11KK47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0646S51KK47TA2

55 Gallon Two Post Ram

AF0646S11KK47

RM552S-C

66516-6

Double Lip

Polyurethane

TP0646S51HH47AA2

55 Gallon Two Post Ram

AF0646S11HH47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0646S51RK47AA2

55 Gallon Two Post Ram

AF0646S11RK47

RM552S-C

66516-1

Double Lip

Polyurethane

Model Number

Package Type

Pump Model

Floor Mount Kit

Ball Valve

Material Supply Hose

Material Hose w/Fittings

FM0646S21FF47E32

5 Gallon Single Post Ram

AF0646S11FF47

Includes Floor Mount Kit

Includes Ball Valve

Material Supply Hose 3/8''

Material Hose w/Fittings 3/8''

FM0646S21FF47E32

5 Gallon Single Post Ram

AF0646S11FF47

Includes Floor Mount Kit

Includes Ball Valve

Material Supply Hose 3/8''

Material Hose w/Fittings 3/8''

FM0646S51FF47E32

55 Gallon Two Post Ram

AF0646S11FF47

Includes Floor Mount Kit

Includes Ball Valve

Material Supply Hose 3/8''

Material Hose w/Fittings 3/8''

FM0646S51FF47E32

55 Gallon Two Post Ram

AF0646S11FF47

Includes Floor Mount Kit

Includes Ball Valve

Material Supply Hose 3/8''

Material Hose w/Fittings 3/8''

Recommended Accessories

Extrusion Guns:
651500: For material over 200,000 cPs, 3/8" (F) inlet
651533: For low- to medium-viscosity fluids, 1/4" NPS (M) inlet

Extrusion Gun Nozzle Kits:
66541-6: Orifice .063" (1.63 mm)
66541-9: Orifice .093" (2.36 mm)
66541-2: Orifice .125" (3.17 mm)

Swivel:
636085: Straight, 3/8" (M) x 3/8" (F) / fabric with neoprene / 8,000 psi (552 bar) max. working pressure
636088: Z-360°, 3/8" (M) x 3/8" (F) / fabric with neoprene / 8,000 psi (552 bar) max. working pressure
75364: Straight, for use with 651533 gun / 1/4"-18 NPTF to 1/4"-18 NPSM / 10,000 psi (690 bar) max. working pressure

Material Filters:
1" F (2) inlet, 3/8" F (3) outlet / 6,000 psi (414 bar) max. / Carbon Steel
651418-40-B: for 40 Mesh (375 Microns)
651418-70-B: for 70 Mesh (200 Microns)

3/4" Fluid Pressure Regulators:
651780-C1B-B: Regulated 750 – 2,500 psi (52 – 173 bar) / 6,000 psi (414 bar) max. inlet / carbon steel
651780-C1C-B: Regulated 2,000 – 5,000 psi (138 – 345 bar) / 6,000 psi (414 bar) max. inlet / carbon steel
651780-C3B-B: Regulated 750 – 2,500 psi (52 – 173 bar) / 6,000 psi (414 bar) max. inlet / stainless steel
651780-C3R-B: Regulated 750 – 5,000 psi (52 – 345 bar) / 6,000 psi (414 bar) max. inlet / stainless steel