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Product profile

RPD 35

Built Robotics RPD 35 is a robotic pile driver for utility-scale solar construction, combining autonomous pile driving with an integrated survey workflow.

Facts

Company
Built Robotics
Product type
construction_robot
Status
commercial
Primary capability
Autonomous solar pile driving
Website
https://www.builtrobotics.com/solutions/solar-piling

About RPD 35

RPD 35 is a 144,000 lb autonomous piling system built on a Caterpillar 335 excavator base. A 40,000 lb-force vibratory hammer installs steel piles, while two sleds carry as many as 224 mixed piles for autonomous distribution. RPD 35 handles pile lengths of 9–20 feet, weights up to 1,000 lb and W6, W8 and W10 cross sections.

RTK positioning, inertial sensing and machine vision locate each foundation point and guide the hammer, combining survey, pile distribution, driving and as-built data capture in one sequence. Refusal detection flags piles that exceed the defined threshold and allows the robot to continue through the plan. Built supplies the equipment through a robot-as-a-service model with mobilisation, field support, remote monitoring and an eight-layer safety system.

Market context

ground_robot_v1, 1600, 900, 8c96676fc5b8e1ffc746d26326a1a3fbc7605f579ffa82a3e3e2b16131227f8c, 8c96676fc5b8e1ffc746d26326a1a3fbc7605f579ffa82a3e3e2b16131227f8c, Autonomous robotic pile driver, 1600, solar_construction, 900, https://assets.builtrobotics.com/production/public/download/2024_01_22_BUILT_0013-4-HDR.jpg, imagegen_studio_background_from_official_reference, https://assets.builtrobotics.com/production/public/download/2024_01_22_BUILT_0013-4-HDR.jpg, commercial_raas, https://www.builtrobotics.com/about/downloads, source_backed_photo, 2026-08-17T14:26:52.573Z, source_backed_photo, products/media-replacement-audit-2026-08-17/candidate5/built-rpd-35-official-photo-1600x900.jpg, products/media-replacement-audit-2026-08-17/candidate5/built-rpd-35-official-photo-1600x900.jpg, approved, construction_robot, source_photo_16x9_crop, https://www.builtrobotics.com/about/downloads, Robotic Pile Driver, construction_robot, grey_textured_studio_wall_floor_soft_shadow, source photograph; visible background; no alpha, robotic_pile_driver, construction_robot

Summary

Type: Construction robot

Core: Solar pile driving

Function: Pile installation

Audience: Solar EPCs

Specifications

cycle_time_s
<100 s pile driving cycle s
ground_pressure_psi
11 psi psi
hammer_impulse_force_lbf
40,000 lb lb
hammer_oem_model
Rammer Ho-Pac 4000
hammer_operating_frequency_rpm
2,100 rpm rpm
max_pile_capacity
224 piles piles
maximum_grade_percent
10% %
maximum_pile_weight_lbs
600 lb lb
operating_weight_lbs
144,000 lb fully loaded lb
pile_cross_sections
W6×7 to W8×28
pile_length_range_m
5.79-9.14 m supported pile length range m
pile_types_supported
10+ pile types pile types
positioning_accuracy_cm
1 cm RTK GPS positioning cm
safety_system_layers
8-layer safety system layers
sled_maximum_payload_lbs
40,000 lb lb
workflow
Integrated survey and robotic regrip workflow

Operations

Environment
utility-scale solar construction sites, outdoor construction
Primary user
solar EPC contractors, construction crews
Role
surveying, pile distribution, pile driving, as-built capture
Interaction model
autonomous, remote monitored, remote control available
Mobility class
tracked heavy equipment
Product detail
ground_robot_v1, 1600, 900, 8c96676fc5b8e1ffc746d26326a1a3fbc7605f579ffa82a3e3e2b16131227f8c, 8c96676fc5b8e1ffc746d26326a1a3fbc7605f579ffa82a3e3e2b16131227f8c, Autonomous robotic pile driver, 1600, solar_construction, 900, https://assets.builtrobotics.com/production/public/download/2024_01_22_BUILT_0013-4-HDR.jpg, imagegen_studio_background_from_official_reference, https://assets.builtrobotics.com/production/public/download/2024_01_22_BUILT_0013-4-HDR.jpg, commercial_raas, https://www.builtro...

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