Heavy Duty Round Line Cylinders Bimba offers a variety of heavy duty repairable round line cylinders as counterparts to our non-repairable Original Line offerings. Double-Wall® cylinders convert into six NFPA mounting styles and utilize easy to assemble “bolt on” mounting kits. An epoxy coated aluminum tie-tube outer shell protects the inner 304 stainless steel body tube from harsh environments. This design allows these cylinders to withstand dents and dings that would normally cause single wall cylinders to fail. Bimba’s repairable stainless steel cylinders offer a corrosion resistant design that is ideal for washdown applications and is designed specifically to reduce sharp edges and corners and provide a smooth transition from end cap to cylinder body. Tapped holes are provided to allow easy mounting of USDA approved secondary wiper retainers as an option. BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-

Contents 433 Double-Wall® Cylinders 433 – Cutaway 434 – How it Works 434 – Engineering Specifications 435 – Double-Wall® Long Stroke Cylinder Selection 436 – Dimensions 440 – Dimensions (Double Rod End Models) 441 – Double-Wall Front Nose Mounting (in) 442 – Accessories 443 – How to Order 444 – Repair Instructions 445 – Repair Parts 445 – Repair Kits 446 Repairable Stainless Steel Cylinders 446 – Operating Specifications 447 – Materials of Construction 447 – Engineering Specifications 447 – Weight of Cylinders 448 – Dimensions 455 – How to Order 456 Centaur Repairable Cylinders 456 – Technical...

Product Features Double-Wall® Cylinders HEAVY DUTY ROUND LINE CYLINDERS O-Ring Body Seal Block Vee Piston Seals Wave Spring Aluminum Alloy Self Aligning Head Bronze Bushing & Lip Seal Wiper Four NFPA Rod End Options Retaining Ring Epoxy Coated Aluminum Tie-Tube Piston Bearing Ring 304 Stainless Steel Body Retaining Plate Hard Chrome Plated Rod BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4622

How it Works Piston Rod Diameter HEAVY DUTY ROUND LINE CYLINDERS 5/8" and 1" diameter rods are standard. These rods are made of high strength steel and are suitable for most applications. On long stroke, high thrust applications caution should be exercised and the column strength and stop length chart on page 435 should be reviewed. Hard chrome plated rods are supplied as standard on all models except 1-1/2" MRS, which are 303 stainless steel. Special materials such as 303 stainless steel are available on request. Bimba offers six popular NFPA rod end styles (see page 443). Bimba considers the...

How to Specify Double-Wall® Long Stroke Cylinder Selection Determining Mounting Class Mounting Style Rigidly guided, pivoted Pivoted, supported but not rigidly guided Pivot Clevis Pivoted, supported Free end unguided and unsupported HEAVY DUTY ROUND LINE CYLINDERS Application of Long Stroke Cylinders are controlled by two factors: column strength of piston rod and mounting configuration. Dual Piston construction provides needed additional bearing surface through the cycle of the cylinder. Dual Pistons consist of mounting two pistons on the rod, separated a calculated distance to provide the required...

HEAVY DUTY ROUND LINE CYLINDERS Double-Wall (no mounting) LB + STROKE Y E1 4 x D THREAD LOACATED ON BOLT CIRCLE BC BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-462

HEAVY DUTY ROUND LINE CYLINDERS Side Lug Mount (NFPA MS-2) (in) End Lug Mount (NFPA MS-7) (in) XE + STROKE Y BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4622

HEAVY DUTY ROUND LINE CYLINDERS Clevis Mount (NFPA MP-1) (in) P + STROKE E1 Pivot Mount (NFPA MP-4) (in) 438 BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4622

HEAVY DUTY ROUND LINE CYLINDERS Front Flange Mount (NFPA MF-1) (in) Rear Flange Mount (NFPA MF-2) (in) ZF + STROKE P + STROKE BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4622

How to Specify Dimensions (Double End Rod Models) HEAVY DUTY ROUND LINE CYLINDERS Basic Double-End Rod Cylinder Y Flange Mount (NFPA MF-1) LD + STROKE PA + STROKE ZL + STROKE Side Lug Mount (NFPA MS-2) US 1 NOTE: When ordering “Cushions Both Ends,” specify DWDC – One End DWDS. EE will provide extra extension on both ends. BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4

How to Specify Double-Wall® Front Nose Mounting (in) Foot Bracket (D-17920) Accessory for Nose Mount 1.25 R 1.062 DIA. BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4622 HEAVY DUTY ROUND LINE CYLINDERS

HEAVY DUTY ROUND LINE CYLINDERS Rod Stud (Rolled Threads) Case Hardened Pivot Pin with Rings Nickel Steel includes Case Hardened Pin (For -2 Rod End style only) (Includes Case Hardened Pin) Accessories Dimensions (in) Bore BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-4622

An example of a basic Double-Wall® unit with 1-1/2” bore, 10” stroke, and additional options is shown below. Rod End Style* 1 Large male, one piece Large male, one piece coarse thread (1-1/2”, 2”, and 2-1/2” bores only) Female threads Small male, one piece, coarse thread (1-1/2”, 2”, and 2-1/2” bores only) Small male stud (rolled threads) Small male, one piece HEAVY DUTY ROUND LINE CYLINDERS The model number of Double-Wall® pneumatic actuators consists of an alphanumeric cluster designating product type, bore size, stroke length, and other optional components that together make up the complete...

How to Repair Repair Instructions HEAVY DUTY ROUND LINE CYLINDERS * Used in most mounting kits and on all 3¼" and 4" bore basic cylinders. * Used on all 3-1/4" and 4" bore basic cylinders. Individual Repair Parts and Kits are listed on page 445. When ordering, specify the applicable “P” number followed by the cylinder part number. For example, to get a rod seal for a DWC-1710-2 cylinder, order P-9-DWC-1710-2. BIMBA BIM-PFL-0320 Catalog 2020 | For Technical Assistance: 800-442-46