RETROL & OKMO N01 Hit and Miss Engine Model Four-Stroke Stationary Cement Mixer Internal Combustion Gasoline Engine

RETROL & OKMO N01 Hit and Miss Engine Model Four-Stroke Stationary Cement Mixer Internal Combustion Gasoline Engine(RTR Version)

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Product Information:

Looking to experience the mechanical beat of a classic American stationary engine? This 1/5 scale 3.6cc Hit and Miss engine model features a fully functional four-stroke design, visible moving components, evaporative water cooling, and mechanical ignition. Mounted on a wooden display base and supplied in RTR form, it brings early industrial engineering, historical craftsmanship, and mechanical operation together in a compact desktop presentation.

.Classic Early-American Engine Design:

Based on the iconic Hit-and-Miss stationary engines widely used in early 20th-century American construction equipment, this 3.6cc vertical single-cylinder four-stroke engine captures the characteristic intermittent-firing beat and distinctive operating mechanism of vintage industrial power systems.

.Full-Metal Mechanical Construction:

Built with brass cast components and precision CNC-machined parts, the engine incorporates mechanical fuel delivery, visible drip lubrication, evaporative water cooling, and mechanical trigger ignition systems. The exposed piston and connecting rod provide a clear view of the complete combustion cycle.

.RTR Working Engine Model:

Ready to run upon setup, this model operates like a full-size stationary engine while serving as a historical mechanical display. The realistic operating sequence, moving components, and authentic mechanical sound offer an engaging demonstration of early internal combustion technology.

.Wooden Display Base with Three Color Options:

Mounted on a retro-style wooden base and available in Engineering Red, Agricultural Green, and Navy Blue finishes. The compact footprint and vintage appearance make it suitable for desks, workshops, collections, and industrial-themed display spaces.

.Mechanical Art and STEM Display Piece:

Combining engineering history, industrial aesthetics, and educational value, this model is suitable for engine collections, mechanical demonstrations, office displays, and STEM presentations. It highlights the development of early industrial power equipment in a compact desktop format.

Product Introduction:

.Tracing back to the 1920s, the Hit-and-Miss internal combustion engine powered construction-site cement mixers across American industry. Its straightforward steel-and-brass mechanical structure became a recognizable symbol of early industrial engineering.
.The RETROL & OKMO team presents this 1/5-scale miniature version featuring a 3.6cc vertical single-cylinder four-stroke configuration. Brass casting and CNC-machined metal components are combined throughout, incorporating evaporative water cooling, mechanical fuel delivery, visible drip lubrication, and mechanical trigger ignition—closely reflecting the architecture of the original machines.
.The exposed piston, connecting rod, and fuel system remain visible during operation, faithfully representing the characteristic intermittent firing cycle and rich mechanical sound of Hit and Miss engines.

Delivered in RTR configuration on a wooden display base and available in three finishes, this model combines collection appeal, educational value, and industrial aesthetics in a compact desktop format.

Specifications:

.Material: Metal + Wood
.Color: Red / Green / Blue
.Model: N01
.Product Name: Stationary Cement Mixer Engine Model
.Configuration: RTR (Ready to Run)
.Engine Type: Hit and Miss Gasoline Internal Combustion Engine
.Cylinder Configuration: Vertical Single Cylinder
.Cycle: Four-Stroke
.Displacement: 3.6cc
.Bore: 16.0 mm
.Stroke: 19.0 mm
.Starting Method: Manual Recoil Start / Electric Drill Start
.Cooling System: Evaporative Water Cooling
.Ignition System: Mechanical Trigger-Controlled Igniter (Included)
.Starting Power Input: 1.5V Battery (Not Included, AA Battery Recommended)
.Spark Plug: 3/16-40 Imperial Thread Spark Plug (Included)
.Lubrication Method: Fuel-Oil Mist Lubrication
.Lubrication Ratio: Gasoline to Oil Ratio 25:1 to 30:1
.Fuel: Gasoline (Not Included, 92-Rating or Higher Recommended)
.Engine Oil: Not Included (2T/4T 10W50 Oil Recommended)
.Product Weight: 1500g
.Package Weight: 1800g
.Engine Dimensions: 12 × 11.5 × 17cm
.Product Dimensions: 13.5 x 11.5 x 19.5cm (With Base)
.Package Dimensions: 35 x 20 x 25cm
.Packaging: Graphic Carton
.Age: 16+

Packing List:

.Engine *1
.Drill Start Adapter Rod *1
.Recoil Start Rope Starter *1
.Instruction Manual *1