LimbLogic M


For transtibial amputees who prefer a simple, elevated vacuum system without compromising security, the LimbLogic M is an ideal option. This low build height, four-hole mount pump with rotatable distal pyramid provides clinicians easy set-up in a prosthesis and flexibility in componentry selection and alignment. With LimbLogic M an amputee may don their prosthesis and within a few steps have secure vacuum.

Distinguishing features of LimbLogic M are its adjustable vacuum settings and adjustable stiffness levels. Clinicians may select low or high vacuum settings by turning a screw on the posterior side of the pump. Additionally, by turning a screw inset into the distal pyramid, clinicians may increase or decrease the stiffness of the pump and its amount of shock absorption. With these features the LimbLogic M offers optimal patient comfort with secure elevated vacuum.

Product Highlights:

• Adjustable vacuum levels
• Low 3.6’’ build height
• Standard 4-Hole pattern
• Suitable for a patient weight range of 100 to 330 pounds
• No hoses or charging needed

Product Weight 475 g
Product Height
Build Height
4.1″ (104.14 mm)
3.6″ (91.44 mm)
Patient Weight Light:
100-170 lb (45-77 kg) for U.S. Activity Levels 2-4*
160-330 lb (73-150 kg) for U.S. Activity Levels 2-3*
160-300 lb (73-135 kg) for U.S. Activity Level 4*
Trial Period 30 days from date of patient fitting
Warranty 24 months from date of patient fitting
U.S. L-Code Suggestions L5781, L5988

*Body weight plus any loads normally or routinely carried cannot exceed this weight limit.

Product No. Description
LLM-1001-L LimbLogic® M, Light
LLM-1000-L LimbLogic M, Standard

The mechanical version of LimbLogic offers adjustability in order to provide secure elevated vacuum and optimal patient comfort.

Learn how to adjust the LimbLogic M vacuum and stiffness settings and more in this instructional video.

Find Your Liner Part Number

Enter an Alpha® Liner serial number and the corresponding part number will display.


Thank you for choosing Alpha Liners!