Stroke
25–152 mm Mechanical Stroke
F-Machine PRO4 is a mains-powered mechanical direct-drive machine with a 25–152 mm mechanically adjustable stroke, 4 N·m torque and a Wired Variable-Speed Controller.
$675.00
Core Highlights
Power
4 N·m Output Torque
Control
Wired Variable-Speed Dial
Positioning
Open H-Frame
Base
Approx. 12.8 kg Chassis
Drive
Dual-Bearing Linear Rail
PRO4 supports a 25–152 mm mechanically adjustable stroke. Its crank adjustment system provides a broad working range without app controls or electronic variable stroke.
A 24 V DC / 60 W motor delivers 4 N·m of torque, providing steady mechanical drive as speed, stroke and accessory weight change.
The Wired Variable-Speed Controller gives you direct start, pause and continuous speed adjustment, without an app, Bluetooth or complex menus.
The open frame and adjustable legs make it easier to set the machine at different heights and angles while maintaining stable support.
The H-frame base and solid-steel legs help reduce movement under higher loads. Foot pads and quick-release leg clamps keep setup and adjustment straightforward.
A dual-bearing linear rail guides the thrust rod through each cycle, helping reduce lateral movement and keep the mechanical action smooth and consistent.
Technical Specifications
Control & Variable Stroke
- Stroke
- 25–152 mm mechanically adjustable stroke
- Control Method
- Wired Variable-Speed Controller
- Control Functions
- Start / pause + continuous speed adjustment
- Remote Interaction
- Not supported
- App Control
- Not supported
- Preset Modes
- No preset modes
Power & Speed
- Working Speed
- 0–220 RPM
- Output Torque
- 4 N·m
- Motor
- 24 V DC / 60 W
- Safety Protection
- Overload protection and LED warning
Design & Connections
- Body
- Open H-frame design
- Connection System
- 360° anti-rotation quick connect with Vac-U-Lock interface
- Support Structure
- Adjustable legs with quick-release leg clamps
Dimensions & Weight
- Main Unit Dimensions
- 520 × 180 × 110 mm
- Support Frame Dimensions
- 475 × 320 × 450 mm
- Net Weight
- Approx. 12.8 kg
Power Requirements
- Power Supply
- Mains Powered
- Input Voltage
- AC 110–240 V / 50–60 Hz
Official support, when you need it.
Find setup, manuals, maintenance, replacement parts and contact guidance in the F-Machine Support Hub.
Frequently Asked Questions
What sets PRO4 apart from conventional sex machines?
PRO4 is a mechanical direct-drive machine. Its open mechanical structure, wired controller and high-torque motor deliver a long stroke, direct adjustment and stable output.
Does PRO4 support app or remote control?
No. PRO4 uses a Wired Variable-Speed Controller for start, pause and continuous speed adjustment. It does not rely on a phone, Bluetooth or an internet connection.
Does PRO4 include preset modes?
No. Speed is adjusted directly through the Wired Variable-Speed Controller rather than a preset programme.
Can the PRO4 stroke be adjusted?
Yes. PRO4 supports a 25–152 mm mechanically adjustable stroke. Stroke is set through the mechanical adjustment system, not through an app or real-time electronic stroke adjustment.
Who is PRO4 designed for?
PRO4 is designed for adults who value mechanical direct drive, a long stroke, high torque and straightforward control. It is a more focused mechanical choice when app control and remote interaction are not priorities.
How loud is PRO4?
PRO4 produces normal motor and transmission sound during operation; it is not silent. Sound varies with speed, stroke, load, accessory weight, installation angle and support. Stop operation and check the setup if you notice unusual resistance, noise or vibration.
Is PRO4 battery-powered or mains-powered?
PRO4 is mains powered. Its power supply is integrated into the main unit and it must be connected to AC mains power during operation.