ZCR351A-278 “Alligator” Yoke Riveters
“Alligator” Yoke Riveters
The ZCR351A-278 Alligator Yoke Riveters are precise pneumatic squeeze riveting tools designed for structural riveting tasks requiring extended reach, accurate alignment, and controlled squeeze force. Featuring an Alligator-style yoke design, this riveter provides better access to edges, flanges, ribs, and recessed structural areas that standard C-frame riveters may struggle to reach. Designed for consistent performance in demanding manufacturing and maintenance environments, the ZCR351A-278 delivers smooth pneumatic squeeze action with steady force output. Its reinforced yoke design reduces deflection during use, ensuring consistent rivet formation and reliable installation in high-volume or detailed assembly operations.
Key Features
Alligator-style yoke design for extended reach and improved accessibility
Pneumatic squeeze mechanism for controlled rivet forming
High-rigidity yoke construction enhances alignment accuracy
Stable and repeatable squeeze force output
Smooth trigger actuation for precise operator control
Durable industrial-grade construction for continuous-duty operation
Balanced tool design reduces operator fatigue
Suitable for structural and precision riveting operations
Consistent performance during repetitive production tasks
Low-maintenance design with extended service intervals
Applications
The ZCR351A-278 Alligator Yoke Riveters are ideal for
Aerospace structural assembly and aircraft skin riveting
Installation of rivets near structural edges and internal frames
Automotive and transportation body assembly
Sheet metal and structural fabrication
Railcar and heavy vehicle manufacturing
Maintenance and repair operations requiring extended-access riveting tools
Performance Advantages
Extended Reach Capability
Alligator yoke configuration allows access to difficult or restricted riveting locations
Precision Rivet Formation
Controlled squeeze force ensures uniform rivet head formation
High Repeatability
Stable pneumatic output supports consistent manufacturing quality
Improved Operator Control
Smooth actuation improves placement accuracy and efficiency
Industrial Durability
Robust construction ensures long-term reliability in demanding environments
Reduced Rework
Accurate alignment minimizes rivet deformation and installation defects
Technical Highlights
Tool Type
Pneumatic squeeze riveter with Alligator yokeDrive System
Air-powered squeezing mechanismYoke Style
Alligator extended-reach configurationOperation Mode
Manual trigger controlConstruction
High-strength industrial-grade materialsApplication Focus
Structural and close-access rivetingMaintenance
Low maintenance design with long service intervals
Why Choose ZCR351A-278 Alligator Yoke Riveters
The ZCR351A-278 Alligator Yoke Riveters are designed for professionals who require extended accessibility, precise control, and dependable structural riveting performance. The Alligator yoke configuration offers superior reach and positioning flexibility, making it well-suited for aerospace and transportation assembly environments. With stable squeezing performance, durable construction, and ergonomic handling, the ZCR351A-278 supports high-quality riveting results, improved productivity, and reliable long-term operation in demanding industrial applications.
Features:
- Designed for one-person operation to increase productivity, replacing costly two-person riveting. Used in high-volume riveting applications.
- Capable of accurately squeezing a large variety of solid, tubular, and semi-tubular rivets in aircraft, truck, bus, boat, toy, and automotive component applications.
- A tandem cylinder doubles the compressive force of the standard tool, allowing the operator to upset larger-diameter rivets and rivets made of stronger materials.
- All models: regulated backhead and short stroke adjustment; CR-1 rivet shank holes. Model 351FCT08 air-operated foot pedal control available.
Specification:
- Rivet Capacity Diameter: 5/32(4) Alum
- Rivet Capacity Diameter: 1/8(3.2) Steel
- Standard Yoke Dimensions Reach: 2-7/8(73)
- Standard Yoke Dimensions Gap: 1-5/8(41.2)
- Standard Yoke Closed Height: 7/8(22)
- Max Force: 5200(23.13) lb(kN)
- Set Holder Max Travel: 5/8(15.9)
- Overall Length: 19.5(495) inch(mm)
- Weight With Yoke: 15.75(7.14) lbs(kgs)
- Shank Dia.: 0.187″
- Inlet Thread: 1/4″
- Rec’d Hose: 3/8″
- Air Cons.: 2.75 cf per stroke
Compression Riveters, “Alligator” Yoke
| Model | Rivet Capacity Diameter | Standard Yoke Dimensions Reach | Standard Yoke Dimensions Gap | Standard Yoke Closed Height | Max Force lb(kN) | Set Holder Max Travel | Overall Length inch(mm) | Weight With Yoke lbs(kgs) | |
| Alum | Steel | ||||||||
| ZCR351A-278 | 5/32(4) | 1/8(3.2) | 2-7/8(73) | 1-5/8(41.2) | 7/8(22) | 5200(23.13) | 5/8(15.9) | 19.5(495) | 15.75(7.14) |
| ZCR351A-5 | 1/8(3.2) | 3/32(2.4) | 5(127) | 1-5/8(41.2) | 7/8(22) | 3400(15.12) | 1-3/8(35) | 21.63(549) | 19.75(8.96) |
| ZCR351A-7 | 1/8(3.2) | 3/32(2.4) | 7(177.8) | 2(50.8) | 1-1/2(38) | 3000(13.35) | 1-11/16(42.9) | 23.63(600) | 24.25(11) |
| ZCR351A-918 | 1/8(3.2) | 3/32(2.4) | 9-1/8(231.8) | 2-3/16(55.6) | 3/4(19) | 3000(13.35) | 1-11/16(42.9) | 25.75(654) | 26.25(11.91) |
Tandem Compression Riveters, “Alligator” Yoke
| Model | Rivet Capacity Diameter | Standard Yoke Dimensions Reach | Standard Yoke Dimensions Gap | Standard Yoke Closed Height | Max Force lb(kN) | Set Holder Max Travel | Overall Length inch(mm) | Weight With Yoke lbs(kgs) | |
| Alum | Steel | ||||||||
| ZCR351AT-278 | 1/4(6.4) | 3/16(4.8) | 2-7/8(73) | 1-5/8(41.2) | 7/8(22) | 10400(46.26) | 5/8(15.9) | 23.75(603) | 18.5(8.39) |
| ZCR351AT-5 | 3/16(4.8) | 5/32(4) | 5(127) | 1-5/8(41.2) | 7/8(22) | 6800(30.25) | 1-3/8(35) | 25.88(657) | 22.5(10.21) |
| ZCR351AT-7 | 3/16(4.8) | 5/32(4) | 7(177.8) | 2(50.8) | 1-1/2(38) | 6000(26.7) | 1-11/16(42.9) | 27.88(708) | 27(12.25) |
| ZCR351AT-918 | 3/16(4.8) | 5/32(4) | 9-1/8(231.8) | 2-3/16(55.6) | 3/4(19) | 6000(26.7) | 1-11/16(42.9) | 30(762) | 29(13.15) |



