Standard off-the-shelf 12V and 24V linear actuator configurations cover 1000 mm strokes at load ratings from 750 N (BEMONOC 12V 1000 mm unit, 10 mm/s no-load speed [S3]) up to 6000 N (industrial 1000 mm model rated 1300 lbs / 600 kg max thrust [S1]).
Stroke customisation within the 10 mm to 2000 mm window is offered as standard on most industrial product lines, with example cut lengths documented at 770 mm, 1250 mm, and 1850 mm [S1], and adjustable-stroke 24V units covering 120 mm to 1000 mm at 1000 N push/pull with next-day UK delivery [S5].
Why 1000 mm Is the Practical Stock-Length Ceiling
Ball-screw-driven linear actuators are commonly found at stroke lengths of 1000 mm or less; extending beyond that range requires a larger-diameter screw to stay above the screw's critical speed, otherwise the screw begins to whip like a jump rope as length and RPM rise [S4].
Specialty lines confirm the boundary: the LINAK LA36 lists 100 mm to 600 mm as its standard stroke envelope [S7], while heavy-duty SLZ 63 actuators from Phoenix Mecano top out at 1000 mm maximum stroke in their standard integration profile [S8]. The 1000 mm threshold is therefore not a marketing artifact, it is a screw-mechanics boundary for standard-diameter ball screws at typical industrial RPM.
Drive-Mechanism Comparison for Sub-1000 mm Strokes
For strokes up to 1000 mm the dominant drive choices are toothed belt and ball screw, with each setting distinct operating envelopes across speed, stroke, load, and accuracy (see the comparison below; data grounded in [S4] unless noted):
Ball screw actuators: stroke typically 1000 mm or less (up to 3000 mm with larger-diameter screws), maximum speed around 1.5 m/s at strokes under 1 m, preloadable for higher positioning accuracy and repeatability, and a typical 750 N to 6000 N load envelope on 12V/24V stock units [S3][S1][S4].
Toothed belt actuators: strokes of 10 m to 12 m achievable by increasing belt width and tooth pitch, maximum speed 5 m/s with recirculating bearings (up to 10 m/s with cam rollers or preloaded wheels), and longer maximum stroke than ball screw, but lower positioning rigidity because the belt cannot be preloaded like a screw [S4].
The decision rule at 1000 mm is therefore straightforward: if the stroke fits and positioning repeatability matters (medical, valve actuation, precision lifting), a ball-screw unit is the right pick; if stroke is approaching or above 1000 mm and high speed matters more than micrometre repeatability, a belt drive is the only practical option at standard screw diameters [S4].
Load, Voltage, and Speed Envelopes at 1000 mm Stroke
Voltage and load scale together in the 12V/24V industrial segment, with off-the-shelf 1000 mm units populating these four reference points: 12V / 750 N / 10 mm/s no-load [S3]; 24V / 1000 N / stroke adjustable 120 mm to 1000 mm [S5]; industrial 12V or 24V / 6000 N (1300 lbs) [S1]; and 12V-family lines spanning 1000 N to 10000 N with multiple speed and mounting options [S2].
Micro-format actuators occupy a different envelope entirely, typically 10 mm to 100 mm stroke, so any application requiring 1000 mm of travel is automatically out of the micro class and into the industrial linear motion segment [S6]. For higher force at long stroke, the same 12V platform that drives a 1000 N residential lift can be scaled to 10000 N, but the available stroke window on those higher-force variants is usually shorter than 1000 mm unless explicitly custom-ordered [S2].
Custom Stroke Sourcing vs Stock 1000 mm
Specifying a non-standard stroke such as 770 mm, 1250 mm, or 1850 mm inside the 10 mm to 2000 mm envelope is treated as a routine custom order on most industrial lines, with no price premium called out by the manufacturer [S1]. That makes 1000 mm more of a logistics sweet spot than a hard spec limit: it is the longest stroke that most distributors will hold in finished-goods inventory, and any deviation is built to order on the same lead time as a modified-mounting variant.
For applications where a linear module needs to be paired with a long-stroke actuator, the 1000 mm ceiling reappears: a ball-screw linear guide module above 1000 mm typically forces a switch to belt drive or to a screw-support bearing to keep critical-speed margin positive, which adds cost and footprint [S4]. Engineers should therefore treat 1000 mm as the default upper boundary when sketching layouts, and only budget for the screw-support or belt-drive option when the mechanism envelope forces it.
Limits, Failure Modes, and What 1000 mm Actuators Will Not Do
At 1000 mm stroke a ball-screw unit is operating near its critical-speed ceiling, so any attempt to push RPM higher to gain cycle time will surface vibration, audible whip, and accelerated bearing wear, the failure mode is mechanical resonance, not electrical overload [S4].
A second constraint is duty cycle: a 6000 N 1000 mm industrial unit running at full load draws significantly more current than a 750 N 1000 mm unit, and on a 12V supply the higher-force variant will thermally limit continuous-on time more aggressively [S1][S3]. A third, often missed, limit is positional feedback: stock 1000 mm units ship with basic end-of-stroke limit switches, and any application needing mid-stroke position feedback (synchronised lifting, closed-loop valve modulation) must specify a Hall-sensor, potentiometer, or magnetic-sensor variant on the same product line, which adds cost and lead time [S1].
Applicable Standards and Sourcing Signals
For outdoor or washdown 1000 mm installations, IP66/IP67 ratings on the actuator housing are the practical ingress-protection benchmark; the related IP66 linear actuator spec guide maps which stroke and force combinations survive hose-down and weather exposure without sealing compromises. [S1]
Stock-availability signal to track: most industrial 12V/24V 1000 mm actuators at 1000 N to 6000 N remain in continuous production with custom-stroke variants built to order on the same platform, while high-force 12V variants above 6000 N are typically only stocked in shorter stroke lengths and are built to order at 1000 mm [S1][S2]. Lead time for a 1000 mm custom-stroke unit is therefore the same as a 500 mm unit on most lines, which makes the 1000 mm specification a soft cap rather than a hard one.
